Unpacked Content
Scientific and Engineering Practices
Planning and Carrying out Investigations
Crosscutting Concepts
Patterns
Knowledge
Students know:
- Properties of matter can be classified as intensive or extensive.
- Some examples of intensive properties of matter are, but are not limited to, density, boiling point, and specific heat.
- Some examples of extensive properties of matter are, but are not limited to, heat, mass, and volume.
- Intensive properties can be used to identify a substance.
- Some properties of matter are visible on the macroscopic level, while others are evident at the atomic/ molecular/ particulate level.
Skills
Students are able to:
- Plan an investigation that outlines the experimental procedure, including safety considerations, how data will be collected, number of trials, experimental setup, and equipment required.
- Determine the types, quantity, and accuracy of data needed to produce reliable measurements.
- Conduct an investigation to collect and record data that can be used to classify properties of matter as intensive or extensive.
- Classify properties of matter as intensive or extensive.
- Evaluate investigation design to determine the accuracy and precision of the data collected, as well as limitations of the investigation.
- Identify a compound based on its intensive properties.
Understanding
Students understand that:
- Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it.
- The data generated from an investigation serves as the basis for evidence.
- Macroscopic patterns are related to the nature of atomic/ molecular level structure.
Vocabulary
- Properties
- Intensive properties and examples (e.g., density, viscosity, melting point, etc.)
- Extensive properties and examples (e.g., mass, volume, heat, etc.)
- Matter
- Macroscopic level
- Atomic/ molecular level
