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
