North Carolina Standards
NC.3.P. Physical Science
Energy: Conservation and Transfer
3.P.3. Recognize how energy can be transferred from one object to another.
3.P.3.1. Recognize that energy can be transferred from one object to another by rubbing them against each other.
Forces and Motion
3.P.1. Understand motion and factors that affect motion.
3.P.1.1. Infer changes in speed or direction resulting from forces acting on an object.
3.P.1.2. Compare the relative speeds (faster or slower) of objects that travel the same distance in different amounts of time.
3.P.1.3. Explain the effects of earth's gravity on the motion of any object on or near the earth.