HS-PS3-2
The standard
Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as either motions of particles or energy stored in fields.
Next Generation Science Standards
What this standard means
Students need to connect big, visible energy changes to what is happening underneath. They should model energy as particle motion, like warming from friction, or as stored energy in fields, like gravity or electric fields. The model can be a diagram, written explanation, graph, or simple simulation.
Mastery looks like a student explaining where the energy is before, during, and after a change, without saying it was “used up” or “lost.” Common sticking points are mixing up force and energy, treating thermal energy as a substance, and forgetting that fields can store energy even when nothing is moving.
Ways to teach it
- Have students rub two blocks together, measure temperature change, then draw a particle motion model before and after friction.
- Ask students to explain where the energy is when a book is lifted, held still, then dropped.
- Use an exit ticket with three pictures, sliding puck, raised weight, charged plates, and ask students to label the energy storage.
- Connect to phone charging by sketching how energy is stored in the battery’s electric field arrangement and later becomes motion, light, and heat.
Plan a lesson for HS-PS3-2
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Related standards
- 5-PS1-1
Develop a model to describe that matter is made of particles too small to be seen.
- MS-LS2-3
Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.
- HS-PS3-5
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- MS-PS3-2
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