Unpacked Content
Scientific and Engineering Practices
Planning and Carrying out Investigations
Crosscutting Concepts
Systems and System Models
Knowledge
Students know:
- Changes in particle motion of a pure substance occur when thermal energy is added to or removed from a system.
- Changes in temperature of a pure substance occur when thermal energy is added to or removed from a system.
- Changes in state of a pure substance occur when thermal energy is added to or removed from a system.
Skills
Students are able to:
- Identify the phenomena under investigation, which includes changes in particle motion, temperature, and state of a pure substance when thermal energy is added to or removed from a system.
- Identify the purpose of the investigation, which includes determining changes in particle motion, temperature, and state of a pure substance when thermal energy is added to or removed from a system.
- Develop a plan for the investigation individually or collaboratively.
- Describe factors used in the investigation including appropriate units (if necessary), independent and dependent variables, controls and number of trials for each experimental condition.
- Perform the investigation as prescribed by the plan.
- Use data from the investigation to provide an causal account of the relationship between the addition of removal of thermal energy from a substance and the change in the average kinetic energy of the particles in a substance.
Understanding
Students understand that:
- Adding or removing thermal energy from a system causes changes in particle motion of a pure substance.
- Adding or removing thermal energy from a system causes changes in temperature of a pure substance.
- Adding or removing thermal energy from a system causes changes in state of a pure substance.
Vocabulary
- Particle motion
- Temperature
- State [of Matter]
- Pure substance
- Thermal Energy
- Kinetic Energy
- System
