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SC15.4.5

Compile information to describe how the use of energy derived from natural renewable and nonrenewable resources affects the environment (e.g., constructing dams to harness energy from water, a renewable resource, while causing a loss of animal habitats; burning of fossil fuels, a nonrenewable resource, while causing an increase in air pollution; installing solar panels to harness energy from the sun, a renewable resource, while requiring specialized materials that necessitate mining).

Unpacked Content

Scientific and Engineering Practices

Obtaining, Evaluating, and Communicating Information

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • How energy is derived from natural resources.
  • How energy resources derived from natural resources address human energy needs.
  • Positive and negative environmental effects of using each energy resource.
  • The role of technology in improving or mediating the environmental effects of using a given resource.

Skills

Students are able to:
  • Waves, which are the regular patterns of motion, can be made in water by disturbing the surface.
  • When waves move across the surface of deep water, the water goes up and down in place; there is no net motion in the direction of the wave except when the water meets a beach.
  • Waves of the same type can differ in amplitude (height of the wave) and wavelength (spacing between wave peaks).

Understanding

Students understand that:
  • Energy and fuels that humans use are derived from natural sources, and their use affects the environment in numerous ways.
  • Resources are renewable over time, while others are not.

Vocabulary

  • natural resources
  • natural renewable resources
  • nonrenewable resources
  • fossil fuels
  • air pollution
  • pollution
  • solar energy
  • environment
  • effects
  • affects
  • habitat
  • solar panel
  • impact
  • solution
  • derived
  • harness

SC15.4.6

Develop a model of waves to describe patterns in terms of amplitude and wavelength, and including that waves can cause objects to move.

Unpacked Content

Scientific and Engineering Practices

Developing and Using Models

Crosscutting Concepts

Patterns

Knowledge

Students know:
  • Waves can be described in terms of patterns of repeating amplitude and wavelength (e.g., in a water wave there is a repeating pattern of water being higher and then lower than the baseline level of the water).
  • Waves can cause an object to move.
  • The motion of objects varies with the amplitude and wavelength of the wave carrying it.
  • The patterns in the relationships between a wave passing, the net motion of the wave, and the motion of an object caused by the wave as it passes.
  • How waves may be initiated (e.g., by disturbing surface water or shaking a rope or spring).
  • The repeating pattern produced as a wave is propagated.
  • Waves, which are the regular patterns of motion, can be made in water by disturbing the surface. When waves move across the surface of deep water, the water goes up and down in place; there is no net motion in the direction of the wave except when the water meets a beach.
  • Waves of the same type can differ in amplitude (height of the wave) and wavelength (spacing between wave peaks).

Skills

Students are able to:
  • Develop a model to make sense of wave patterns that includes relevant components (i.e., waves, wave amplitude, wavelength, and motion of objects).
  • Describe patterns of wavelengths and amplitudes.
  • Describe how waves can cause objects to move.

Understanding

Students understand that:
  • There are similarities and differences in patterns underlying waves and use these patterns to describe simple relationships involving wave amplitude, wavelength, and the motion of an object.

Vocabulary

  • Patterns
  • Propagated
  • Waves
  • Wave amplitude
  • Wavelength
  • Net motion
  • Model
  • Relevant components
  • Peaks

SC15.4.7

Develop and use models to show multiple solutions in which patterns are used to transfer information (e.g., using a grid of 1s and 0s representing black and white to send information about a picture, using drums to send coded information through sound waves, using Morse code to send a message).*

Unpacked Content

Scientific and Engineering Practices

Developing and Using Models

Crosscutting Concepts

Patterns

Knowledge

Students know:
  • About digitized information transfer. (e.g., information can be converted from a sound wave into digital signals such as patterns of 1s and 0s and vice versa; visual or verbal messages can be encoded in patterns of flashes of light to be decoded by someone else across the room).
  • Ways that high-tech devices convert and transmit information. (e.g., cell phones convert sound waves into digital signals, so they can be transmitted long distances, and then converted back into sound waves; a picture or message can be encoded using light signals to transmit the information over a long distance).
  • Information can be transmitted over long distances without significant degradation. High tech devices, such as computers or cell phones, can receive and decode information - convert form to voice - and vice versa.

Skills

Students are able to:
  • Generate multiple design solutions that use patterns to transmit a given piece of information.
  • Apply the engineering design process to develop a model to show multiple solutions to transfer information.
  • Describe the given criteria for the design solutions.
  • Describe the given constraints of the design solutions, including the distance over which information is transmitted, safety considerations, and materials available.

Understanding

Students understand that:
  • Similarities and differences in the types of patterns used in the solutions to determine whether some ways of transmitting information are more effective than others and addressing the problem.

Vocabulary

  • transmit
  • transfer
  • decoded
  • accuracy
  • digitized
  • convert
  • coded
  • signals

SC15.4.8

Construct a model to explain that an object can be seen when light reflected from its surface enters the eyes.

Unpacked Content

Scientific and Engineering Practices

Developing and Using Models

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • Light enters the eye, allowing objects to be seen.
  • Light reflects off of objects, and then can travel and enter the eye.
  • Objects can be seen only if light follows a path between a light source, the object, and the eye.

Skills

Students are able to:
  • Construct a model to make sense of a phenomenon.
  • Identify relevant components of the model including: light (including the light source), objects, the path that light follows, and the eye.

Understanding

Students understand that:
  • An object can be seen when light reflected from its surface enters the eyes.

Vocabulary

  • reflection
  • opaque
  • translucent
  • transparent
  • refraction

SC15.4.9

Examine evidence to support an argument that the internal and external structures of plants (e.g., thorns, leaves, stems, roots, colored petals, xylem, phloem) and animals (e.g., heart, stomach, lung, brain, skin) function to support survival, growth, behavior, and reproduction.

Unpacked Content

Scientific and Engineering Practices

Engage in Argument from Evidence

Crosscutting Concepts

Systems and System Models; Structure and Function

Knowledge

Students know:
  • Internal and External structures serve specific functions within plants and animals.
  • The functions of internal and external structures can support survival, growth, behavior and/or reproduction in plants and animals.
  • Different structures work together as part of a system to support survival, growth, behavior, and/or reproduction.

Skills

Students are able to:
  • Articulate an explanation from evidence explaining how the internal and external structures of plants and animals function to support survival, growth, behavior, and reproduction.
  • Determine the strengths and weaknesses of the evidence collected, including whether or not it supports a claim about the role of internal and external structures of plants and animals in supporting survival, growth, behavior, and/or reproduction.
  • Use reasoning to connect the relevant and appropriate evidence to support an argument about the function of the internal and external structures of plants and animals.

Understanding

Students understand that:
  • Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.

Vocabulary

  • argue
  • articulate
  • evidence
  • internal
  • external
  • structure
  • survival
  • function
  • behavior
  • reproduction

SC15.4.10

Obtain and communicate information explaining that humans have systems that interact with one another for digestion, respiration, circulation, excretion, movement, control, coordination, and protection from disease.

Unpacked Content

Scientific and Engineering Practices

Obtaining, Evaluating, and Communicating Information

Crosscutting Concepts

Systems and System Models

Knowledge

Students know:
  • Humans have systems that interact with one another.
  • The purpose, functions, and interactions of the digestive system.
  • The purpose, functions, and interactions of the respiratory system.
  • The purpose, functions, and interactions of the circulatory system.
  • The purpose, functions, and interactions of the excretory system.
  • The purpose, functions, and interactions of the systems that contribute to movement, control, and coordination.
  • The purpose, functions, and interactions of the systems that protect the body from disease.

Skills

Students are able to:
  • Obtain information by reading and comprehending grade-appropriate complex texts about the interacting systems in the human body.
  • Evaluate information about interactions and functions of human body systems by comparing and/or combining across complex texts and/or other reliable media.
  • Communicate information orally and/or in written formats about interactions and functions of human body systems.

Understanding

Students understand that:
  • The body is a system of interacting parts that makes up a whole and carries out functions its individual parts can not.

Vocabulary

  • communicate
  • articulate
  • obtain
  • structure
  • function
  • interactions
  • digestion
  • respiration
  • circulation
  • excretion
  • movement
  • control
  • coordination
  • protection
  • disease
  • body systems

SC15.4.11

Investigate different ways animals receive information through the senses, process that information, and respond to it in different ways (e.g., skunks lifting tails and spraying an odor when threatened, dogs moving ears when reacting to sound, snakes coiling or striking when sensing vibrations).

Unpacked Content

Scientific and Engineering Practices

Planning and Carrying out Investigations

Crosscutting Concepts

Systems and System Models

Knowledge

Students know:
  • Different types of sense receptors detect specific types of information within the environment.
  • Sense receptors send information about the surroundings to the brain.
  • Information that is transmitted to the brain by sense receptors can be processed immediately as perceptions of the environment and/or stored as memories.
  • Immediate perceptions or memories processed by the brain influences an animal's actions or responses to features in the environment.

Skills

Students are able to:
  • Identify different ways animals receive, process, and respond to information.
  • Identify evidence of different ways animals receive, process, and respond to information to be investigated.
  • Plan ways to Investigate different ways animals receive, process, and respond to information.
  • Collect and communicate data of different ways animals receive, process, and respond to information.

Understanding

Students understand that:
  • Sensory input, the brain, and behavioral output are all parts of a system that allows animals to engage in appropriate behaviors.

Vocabulary

  • investigate
  • evidence
  • transmit
  • perception
  • receptors
  • senses
  • sensory information
  • process
  • memories

SC15.4.12

Construct explanations by citing evidence found in patterns of rock formations and fossils in rock layers that Earth changes over time through both slow and rapid processes (e.g., rock layers containing shell fossils appearing above rock layers containing plant fossils and no shells indicating a change from land to water over time, a canyon with different rock layers in the walls and a river in the bottom indicating that over time a river cut through the rock).

Unpacked Content

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Patterns

Knowledge

Students know:
  • Different rock layers found in areas can show either marine fossils or land fossils.
  • Ordering of rock layers (e.g. layer with marine fossils found below layer with land fossils).
  • Presence of particular fossils (e.g., shells, land plants) in specific rock layers as evidence of Earth's changes over time.
  • The occurrence of events (e.g., earthquakes) due to Earth forces.

Skills

Students are able to:
  • Observe evidence from rock patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
  • Identify evidence from rock patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
  • Articulate and describe from evidence patterns in rock formations and fossils in rock layers to support an explanation for changes in a landscape over time.
  • Use reasoning to connect the evidence to support the explanation including the identification of a specific pattern of rock layers and fossils.

Understanding

Students understand that:
  • Local, regional, and global patterns of rock formations reveal changes over time due to earth forces, such as earthquakes. The presence and location of certain fossil types indicate the order in which rock layers were formed.

Vocabulary

  • Evidence
  • Patterns
  • Rock Formations
  • Fossils
  • Rock Layers
  • Landscape
  • Marine fossils

SC15.4.13

Plan and carry out investigations to examine properties of soils and soil types (e.g., color, texture, capacity to retain water, ability to support growth of plants).

Unpacked Content

Scientific and Engineering Practices

Planning and Carrying out Investigations

Crosscutting Concepts

Patterns

Knowledge

Students know:
  • Soil properties (particle size, color, texture).
  • Soil types ( sand, silt, clay, and humus).
  • Relationship between soil types and water.

Skills

Students are able to:
  • Plan and conduct simple tests using various soil types.
  • Collect, describe and evaluate data.
  • Articulate and explain from evidence the properties of soil and soil types.

Understanding

Students understand that:
  • Similarities and differences in patterns can be used to sort and classify soil types by property.

Vocabulary

  • color
  • absorbency
  • texture
  • capacity
  • properties of soil
  • types of soil ( sand, silt, clay, humus)
  • infiltration
  • particle size
  • structure
  • consistency

SC15.4.14

Explore information to support the claim that landforms are the result of a combination of constructive forces, including crustal deformation, volcanic eruptions, and sediment deposition as well as a result of destructive forces, including erosion and weathering.

Unpacked Content

Scientific and Engineering Practices

Obtaining, Evaluating, and Communicating Information

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • Continents and other landforms are continually being shaped and reshaped by competing constructive and destructive geological processes.

Skills

Students are able to:
  • Compare and/or combine information across complex texts and/or other reliable sources to support the claim that landforms are the result of both constructive and destructive forces.

Understanding

Students understand that:
  • Changes in Earth's surface are caused by both constructive and destructive forces.

Vocabulary

  • landform
  • crustal deformation
  • sediment
  • deposition
  • erosion
  • weathering
  • topography
  • volcanoes
  • earthquakes
  • continental boundaries
  • trenches
  • ocean floor structures
  • constructive forces
  • destructive forces
  • eruption
  • geological processes

SC15.4.15

Analyze and interpret data (e.g., angle of slope in downhill movement of water, volume of water flow, cycles of freezing and thawing of water, cycles of heating and cooling of water, speed of wind, relative rate of soil deposition, amount of vegetation) to determine effects of weathering and rate of erosion by water, ice, wind, and vegetation using one single form of weathering or erosion at a time.

Unpacked Content

Scientific and Engineering Practices

Analyzing and Interpreting Data

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • Effects of weathering.
  • The rate of erosion of Earth's materials.
  • The kind of weathering or erosion to which the Earth material is exposed.
  • The change in shape of Earth materials as the result of weathering or the rate of erosion by motion of water, ice, wind, or vegetation.

Skills

Students are able to:
  • Represent data about weathering and erosion in tables and/or other graphical displays to reveal patterns.
  • Analyze and interpret data to make sense of weathering and erosion.
  • Compare and contrast data collected by different groups.

Understanding

Students understand that:
  • Events like weathering and erosion have causes that generate observable patterns and can be used to explain changes in Earth's landforms.

Vocabulary

  • sediment
  • weathering
  • erosion
  • vegetation
  • angle of slope
  • transported
  • variables
  • relative steepness
  • analyze
  • interpret
  • data

SC15.4.16

Describe patterns of Earth’s features on land and in the ocean using data from maps (e.g., topographic maps of Earth’s land and ocean floor; maps of locations of mountains, continental boundaries, volcanoes, and earthquakes).

Unpacked Content

Scientific and Engineering Practices

Analyzing and Interpreting Data

Crosscutting Concepts

Patterns

Knowledge

Students know:
  • Locations of mountain ranges, deep ocean trenches, ocean floor structures, earthquakes, and volcanoes occur in patterns.
  • Volcanoes and earthquakes occur in bands that are often along the boundaries between continents and oceans.
  • Major mountain chains form inside continents or near their edges.

Skills

Students are able to:
  • Organize data using graphical displays from maps of Earth's features.
  • Articulate patterns that can be used as evidence to describe Earth's features on land and in the ocean using maps.
  • Use logical reasoning based on the organized data to make sense of and describe the patterns in Earth's features.

Understanding

Students understand that:
  • Earth's features occur in patterns.

Vocabulary

  • patterns
  • data
  • structures
  • features
  • topographical
  • continental boundaries
  • deep ocean trench
  • ocean floor
  • volcanoes
  • mountains
  • earthquakes

SC15.4.17

Formulate and evaluate solutions to limit the effects of natural Earth processes on humans (e.g., designing earthquake, tornado, or hurricane-resistant buildings; improving monitoring of volcanic activity).*

Unpacked Content

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • Negative effects of a natural Earth process.
  • Solutions that can reduce the effect of natural Earth processes on humans.

Skills

Students are able to:
  • Use scientific knowledge to formulate design solutions to reduce the effects of Earth process.
  • Investigate and test how well design solutions perform under a range of likely conditions.
  • Evaluate and modify multiple solutions to reduce the effects of the Earth processes.

Understanding

Students understand that:
  • A variety of hazards result from natural processes.
  • Humans cannot eliminate the hazards but can take steps to reduce their impacts.
  • Engineers improve existing technologies or develop new ones to increase their benefits or decrease risks, and to meet societal demands.

Vocabulary

  • Natural Earth Process
    • tornado
    • hurricane
    • tsunamis
    • volcanic eruption
    • earthquakes
  • Criteria
  • Constraint
  • Modify
  • Formulate
  • Evaluate
  • Effects
  • Hazards

SC15.5.1

Plan and carry out investigations (e.g., adding air to expand a basketball, compressing air in a syringe, dissolving sugar in water, evaporating salt water) to provide evidence that matter is made of particles too small to be seen.

Unpacked Content

Scientific and Engineering Practices

Planning and Carrying out Investigations

Crosscutting Concepts

Scale, Proportion, and Quantity

Knowledge

Students know:
  • Matter is made of particles too small to be seen Matter too small to be seen still exists and may be detected by other means.
  • Gasses are made of matter particles that are too small to see, and are moving freely around in space (this can explain many observations, including the inflation and the shape of the balloon, and the effects of air on larger particles or objects).
  • The behavior of a collection of many tiny particles of matter and observable phenomena involving bulk matter (e.g., an expanding balloon, evaporating liquids, substances that dissolve in a solvent, effects of wind).
  • There is a relationship between bulk matter and tiny particles that cannot be seen.

Skills

Students are able to:
  • Identify the phenomenon under investigation.
  • Identify evidence that addresses the purpose of the investigation.
  • Collaboratively plan the investigation.
  • Collect and analyze the data.

Understanding

Students understand that:
  • Natural objects exist from the very small to the immensely large.

Vocabulary

  • Investigation
  • Variable
  • Data
  • Hypothesis
  • Conclusion
  • Matter
  • Describe
  • Observe
  • Evidence
  • Immensely
  • Bulk matter
  • Particle

SC15.5.2

Investigate matter to provide mathematical evidence, including graphs, to show that regardless of the type of reaction (e.g., new substance forming due to dissolving or mixing) or change (e.g., phase change) that occurs when heating, cooling, or mixing substances, the total weight of the matter is conserved.

Unpacked Content

Scientific and Engineering Practices

Using Mathematics and Computational Thinking

Crosscutting Concepts

Scale, Proportion, and Quantity

Knowledge

Students know:
  • The amount (weight) of matter is conserved when it changes form, even in transitions in which it seems to vanish.
  • No matter what reaction or change in properties occurs, the total weight of the substances does not change. (Boundary: Mass and weight are not distinguished at this grade level.)

Skills

Students are able to:
  • Measure and graph the given quantities using standard units, including: the weight of substances before they are heated, cooled, or mixed and the weight of substances, including any new substances produced by a reaction, after they are heated, cooled, or mixed.
  • Measure and/or calculate the difference between the total weight of the substances (using standard units) before and after they are heated, cooled, and/or mixed.
  • Describe the changes in properties they observe during and/or after heating, cooling, or mixing substances.
  • Use their measurements and calculations to describe that the total weights of the substances did not change, regardless of the reaction or changes in properties that were observed.
  • Use measurements and descriptions of weight, as well as the assumption of consistent patterns in natural systems, to describe evidence to address scientific questions about the conservation of the amount of matter, including the idea that the total weight of matter is conserved after heating, cooling, or mixing substances.

Understanding

Students understand that:
  • Standard units are used to measure and describe physical quantities such as weight and can be used to demonstrate the conservation of the total weight of matter.

Vocabulary

  • Quantitative measurements (mass, weight, standard unit)
  • Physical quantities (weight, time, temperature, volume)
  • Property changes
  • Matter
  • Reaction
  • Heating
  • Cooling
  • Mixing
  • Physical properties
  • Conservation of matter
  • Graphing

SC15.5.3

Examine matter through observations and measurements to identify materials (e.g., powders, metals, minerals, liquids) based on their properties (e.g., color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, solubility, density).

Unpacked Content

Scientific and Engineering Practices

Planning and Carrying out Investigations

Crosscutting Concepts

Scale, Proportion, and Quantity

Knowledge

Students know:
  • Materials have different properties-color, hardness, reflectivity, electrical conductivity thermal conductivity, solubility, and density.
  • Measurements of a variety of properties can be used to identify materials.
  • Measurements should be made in standard units (e.g., grams & liters).

Skills

Students are able to:
  • Identify the phenomenon through observations about materials, including color, hardness, reflectivity, electrical conductivity, thermal conductivity, response to magnetic forces, and solubility.
  • Identify the evidence and collect data about the observed objects in standard units (e.g., grams, liters).
  • Collaboratively plan the investigation.
  • Identify materials based on their properties.

Understanding

Students understand that:
  • Standard units are used to measure and describe physical quantities of materials such as weight, time, temperature, and volume. These measurements will assist in the identification of the materials ( e.g. powders, metals, minerals, and liquids).

Vocabulary

  • color
  • hardness
  • reflectivity
  • electrical conductivity
  • thermal conductivity
  • response to magnetic forces
  • solubility
  • density
  • measurement (quantitative and qualitative)
  • data
  • observable properties
  • standard units
  • conductors
  • nonconductors
  • magnetic
  • nonmagnetic

SC15.5.4

Investigate whether the mixing of two or more substances results in new substances (e.g., mixing of baking soda and vinegar resulting in the formation of a new substance, gas; mixing of sand and water resulting in no new substance being formed).

Unpacked Content

Scientific and Engineering Practices

Planning and Carrying out Investigations

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • When two or more different substances are mixed, a new substance with different properties may be formed.

Skills

Students are able to:
  • From a given investigation plan, describe the phenomenon under investigation, including the mixing of two or more substances.
  • Identify the purpose of the investigation.
  • Describe the evidence from data that will be collected, including quantitative and qualitative properties of the substances to be mixed and the resulting substances.
  • Collaboratively plan an investigation and describe the data to be collected, including: how quantitative and qualitative properties of the two or more substances to be mixed will be determined and measured, number of trials for the investigation, how variables will be controlled to ensure a fair test.
  • Collect necessary data.

Understanding

Students understand that:
  • Cause and effect relationships are identified and used to explain changes like those that occur when two or more substances are mixed together.

Vocabulary

  • variables
  • states of matter
  • properties of matter
  • chemical change
  • physical change
  • evidence
  • temperature

SC15.5.5

Construct explanations from observations to determine how the density of an object affects whether the object sinks or floats when placed in a liquid.

Unpacked Content

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • Objects are made of many tiny particles to small to be seen.
  • Some objects have many tiny particles compacted close together that causes the object to sink while other objects the same size may float because their tiny particles are less compact.
  • Some objects of the same size sink when others float.
  • Buoyancy is the ability of an object to float.

Skills

Students are able to:
  • Predict the results of different types of objects being placed in water. Test the objects and communicate the results.
  • Use appropriate tools (Scale, balance, ruler, or graduated cylinder) to measure the weight, mass, and/volume of an object.
  • Construct an explanation to describe the observed relationship between density and the ability of an object to sink or float.
  • Identify the evidence that supports the explanation that density affects the ability of an object to sink or float.

Understanding

Students understand that:
  • Cause and effect relationships are routinely identified and used to explain phenomenon like sinking and floating.

Vocabulary

  • density
  • volume
  • buoyancy
  • data
  • observe
  • explain
  • sink
  • float
  • mass

SC15.5.6

Construct an explanation from evidence to illustrate that the gravitational force exerted by Earth on objects is directed downward towards the center of Earth.

Unpacked Content

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • The Earth's shape is spherical.
  • That objects dropped appear to fall straight down.
  • That people live all around the spherical Earth, and they all observe that objects appear to fall straight down.

Skills

Students are able to:
  • Construct an explanation of observed relationships.
  • Use evidence to illustrate the relationship between gravity and objects on Earth.

Understanding

Students understand that:
  • If Earth is spherical, and all observers see objects near them falling directly "down" to the Earth's surface, then all observers would agree that objects fall toward the Earth's center.
  • Since an object that is initially stationary when held moves downward when it is released, there must be a force (gravity) acting on the object that pulls the object toward the center of the Earth.

Vocabulary

  • construct
  • explanation
  • gravitational force
  • evidence
  • illustrate
  • spherical

SC15.5.7

Design and conduct a test to modify the speed of a falling object due to gravity (e.g., constructing a parachute to keep an attached object from breaking).*

Unpacked Content

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • The gravitational force exerted by Earth on objects is directed downward towards the center of Earth.
  • How an engineering design process is used to design and conduct a test.
  • The properties (surface area, substance, weight) of different materials used to modify the speed of a falling object will affect the fall.

Skills

Students are able to:
  • Apply scientific ideas to solve design problems.
  • Generate and compare multiple solutions to a problem based on how well they meet the criteria and constraints of the design solution.

Understanding

Students understand that:
  • A device added to a falling object can cause the speed to be modified.

Vocabulary

  • gravity
  • design
  • conduct
  • gravitational force

SC15.5.8

Defend the position that plants obtain materials needed for growth primarily from air and water.

Unpacked Content

Scientific and Engineering Practices

Engaging in Argument from Evidence

Crosscutting Concepts

Energy and Matter

Knowledge

Students know:
  • How plants obtain nutrients.
  • How to measure growth of a plant.

Skills

Students are able to:
  • Collect and analyze evidence about plant growth.
  • Determine whether evidence supports the claim that plants do not acquire most of the material for growth from soil.
  • Use reasoning to connect the evidence to support the claim. A chain of reasoning should include the following:
    • During plant growth in soil, the weight of the soil changes very little over time, but the weight of the plant changes a lot. Additionally, some plants grow without soil at all.
    • Because some plants don't need soil to grow, and others show increases in plant matter but not accompanying decreases in soil matter, the material from the soil must not enter the plant in sufficient quantities to be the chief contributor to plant growth.
    • Therefore, plants do not acquire most of the material fro growth from soil.
    • A plant cannot grow without water or air. Because both air and water are matter and are transported into the plant system, they can provide the materials plants need for growth.
    • Since soil cannot account for the change in weight as a plant grows and since plants take in water and air, both of which could contribute to the increase in weight during plant growth, plant growth must come chiefly from water and air.

Understanding

Students understand that:
  • Matter, including air and water, is transported into, out of, and within plant systems.

Vocabulary

  • claim
  • evidence
  • hydroponic

SC15.5.9

Construct an illustration to explain how plants use light energy to convert carbon dioxide and water into a storable fuel, carbohydrates, and a waste product, oxygen, during the process of photosynthesis.

Unpacked Content

Scientific and Engineering Practices

Constructing Explanations and Designing Solutions

Crosscutting Concepts

Energy and Matter

Knowledge

Students know:
  • What plants need to survive.
  • Parts of plants and their functions in the process of photosynthesis.
  • The sun is the source of energy.
  • Plants are producers.

Skills

Students are able to:
  • Construct an illustration to explain the scientific phenomenon of photosynthesis.

Understanding

Students understand that:
  • Plants are producers of energy through the process of photosynthesis.

Vocabulary

  • convert
  • carbohydrates
  • waste product
  • photosynthesis
  • carbon dioxide
  • produces
  • oxygen

SC15.5.10

Construct and interpret models (e.g., diagrams, flow charts) to explain that energy in animals’ food is used for body repair, growth, motion, and maintenance of body warmth and was once energy from the sun.

Unpacked Content

Scientific and Engineering Practices

Developing and Using Models

Crosscutting Concepts

Energy and Matter

Knowledge

Students know:
  • The energy released [from] food was once energy from the sun that was captured by plants in the chemical process that forms plant matter (from air and water).
  • Food provides animals with the materials they need for body repair and growth and the energy they need to maintain body warmth and for motion.

Skills

Students are able to:
  • Use models to describe a phenomenon that includes the idea that energy in animals' food was once energy from the sun. Students identify and describe the components of the model that are relevant for describing the phenomenon, including the following:
    • Energy.
    • The sun.
    • Animals, including their bodily functions (e.g., body repair, growth, motion, body warmth maintenance).
    • Plants.
  • Identify and describe the relevant relationships between components, including the following:
    • The relationship between plants and the energy they get from sunlight to produce food.
    • The relationship between food and the energy and materials that animals require for bodily functions (e.g., body repair, growth, motion, body warmth maintenance).
    • The relationship between animals and the food they eat, which is either other animals or plants (or both), to obtain energy for bodily functions and materials for growth and repair.
  • Use the models to describe causal accounts of the relationships between energy from the sun and animals' needs for energy, including that:
    • Since all food can eventually be traced back to plants, all of the energy that animals use for body repair, growth, motion, and body warmth maintenance is energy that once came from the sun.
    • Energy from the sun is transferred to animals through a chain of events that begins with plants producing food then being eaten by animals.

Understanding

Students understand that:
  • Energy can be transferred in various ways and between objects.

Vocabulary

  • Model
  • Energy
  • Repair
  • Growth
  • Motion
  • Maintenance
  • Animal
  • Plant

SC15.5.11

Create a model to illustrate the transfer of matter among producers; consumers, including scavengers and decomposers; and the environment.

Unpacked Content

Scientific and Engineering Practices

Developing and Using Models

Crosscutting Concepts

Systems and System Models

Knowledge

Students know:
  • The food of almost any kind of animal can be traced back to plants.
  • Organisms are related in food webs in which some animals eat plants for food and other animals eat the animals that eat plants.
  • Some organisms, such as fungi and bacteria, break down dead organisms (both plants or plants parts and animals) and therefore operate as "decomposers."
  • Decomposition eventually restores (recycles) some materials back to the soil.
  • Organisms can survive only in environments in which their particular needs are met.
  • A healthy ecosystem is one in which multiple species of different types are each able to meet their needs in a relatively stable web of life.
  • Newly introduced species can damage the balance of an ecosystem.
  • Matter cycles between the air and soil and among plants, animals, and microbes as these organisms live and die. Organisms obtain gases, and water, from the environment, and release waste matter (gas, liquid, or solid) back into the environment.

Skills

Students are able to:
  • Develop a model to describe a phenomenon that includes the movement of matter within an ecosystem, identifying the relevant components such as matter, plants, animals, decomposers, and environment.
  • Describe the relationships among components that are relevant for describing the phenomenon, including the relationships in the system between organisms that consume other organisms, including the following:
    • Animals that consume other animals.
    • Animals that consume plants.
    • Organisms that consume dead plants and animals.
    • The movement of matter between organisms during consumption.
  • Use the model to describe the following:
    • The cycling of matter in the system between plants, animals, decomposers, and the environment.
    • How interactions in the system of plants, animals, decomposers, and the environment allow multiple species to meet their needs.
    • That newly introduced species can affect the balance of interactions in a system (e.g., a new animal that has no predators consumes much of another organism's food within the ecosystem).
    • That changing an aspect (e.g., organisms or environment) of the ecosystem will affect other aspects of the ecosystem.

Understanding

Students understand that:
  • A system can be described in terms of its components, like producers, consumers, and the environment, and their interactions, like the cycling of matter.

Vocabulary

  • Model
  • Transfer
  • Matter
  • Producer
  • Consumer
  • Decomposer
  • Environment

SC15.5.12

Defend the claim that one factor determining the apparent brightness of the sun compared to other stars is the relative distance from Earth.

Unpacked Content

Scientific and Engineering Practices

Engaging in Argument from Evidence

Crosscutting Concepts

Scale, Proportion, and Quantity

Knowledge

Students know:
  • The sun and other stars are natural bodies in the sky that give off their own light.
  • The sun is a star that appears larger and brighter than other stars because it is closer.
  • Stars range greatly in their distance from Earth.
  • A luminous object close to a person appears much brighter and larger than a similar object that is very far away from a person (e.g., nearby streetlights appear bigger and brighter than distant streetlights).

Skills

Students are able to:
  • Identify a given claim to be supported about a given phenomenon. The claim includes the idea that the apparent brightness of the sun and stars is due to their relative distances from Earth.
  • Describe the evidence, data, and/or models that support the claim, including the following:
    • The sun and other stars are natural bodies in the sky that give off their own light.
    • The apparent brightness of a variety of stars, including the sun.
    • A luminous object close to a person appears much brighter and larger than a similar object that is very far away from a person (e.g., nearby streetlights appear bigger and brighter than distant streetlights).
    • The relative distance of the sun and stars from Earth (e.g., although the sun and other stars are all far from the Earth, the stars are very much farther away; the sun is much closer to Earth than other stars).
  • Evaluate the evidence to determine whether it is relevant to supporting the claim, and sufficient to describe the relationship between apparent size and apparent brightness of the sun and other stars and their relative distances from Earth.
  • Use reasoning to connect the relevant and appropriate evidence to the claim with argumentation. Describe a chain of reasoning that includes the following:
    • Because stars are defined as natural bodies that give off their own light, the sun is a star.
    • The sun is many times larger than Earth but appears small because it is very far away.
    • Even though the sun is very far from Earth, it is much closer than other stars.

Understanding

Students understand that:
  • Natural objects, like the sun and stars, exist from the very small to the immensely large.

Vocabulary

  • Defend
  • Claim
  • Factor
  • Evidence
  • Apparent Brightness
  • Relative Distance
  • Sun
  • Stars
  • Earth
  • Reasoning
  • Argumentation

SC15.5.13

Analyze data and represent with graphs to reveal patterns of daily changes in length and direction of shadows, day and night, and the seasonal appearance of some stars in the night sky (e.g., shadows and the position and motion of Earth with respect to the sun, visibility of select stars only in particular months).

Unpacked Content

Scientific and Engineering Practices

Analyzing and Interpreting Data

Crosscutting Concepts

Patterns

Knowledge

Students know:
  • The orbits of Earth around the sun and of the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns.
  • These include day and night; daily changes in the length and direction of shadows; and different positions of the sun, moon, and stars at different times of the day, month, and year.
  • The apparent motion of the sun from east to west results in patterns of change in length and direction of shadows throughout a day as Earth rotates on its axis.
  • The length of the day gradually changes throughout the year as Earth orbits the sun, with longer days in the summer and shorter days in the winter.
  • Some stars and/or groups of stars (constellations) can be seen in the sky all year, while others appear only at certain times of the year.

Skills

Students are able to:
  • Using graphical displays (e.g., bar graphs, pictographs), organize data pertaining to daily and seasonal changes caused by the Earth's rotation and orbit around the sun. Organize data that include the following:
    • The length and direction of shadows observed several times during one day.
    • The duration of daylight throughout the year, as determined by sunrise and sunset times.
    • Presence or absence of selected stars and/or groups of stars that are visible in the night sky at different times of the year.
  • Use the organized data to find and describe relationships within the datasets.
  • Use the organized data to find and describe relationships among the datasets, including the following:
    • Similarities and differences in the timing of observable changes in shadows, daylight, and the appearance of stars show that events occur at different rates (e.g., Earth rotates on its axis once a day, while its orbit around the sun takes a full year).

Understanding

Students understand that:
  • Similarities and differences in patterns can be used to sort, classify, communicate and analyze daily changes in length and direction of shadows, day and night, and the seasonal appearance of some stars in the night sky.

Vocabulary

  • Data
  • Graph
  • Bar Graph
  • Pictograph
  • Pie Chart
  • Line Graph
  • Analyze
  • Shadow
  • Seasonal
  • Sun
  • Star
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