4th Grade Science

Clarification Statement: Emphasis is on the change in the energy due to the change in speed, not on the forces, as objects interact.
Disciplinary Core Ideas
Energy can be moved from place to place by moving objects or through sound, light, or electric currents.
Energy is present whenever there are moving objects, sound, light, or heat. When objects collide, energy can be transferred from one object to another, thereby changing their motion. In such collisions, some energy is typically also transferred to the surrounding air; as a result, the air gets heated and sound is produced.
When objects collide, the contact forces transfer energy so as to change the objects’ motions.

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Proficiency Scale