Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
0.0
Points
0.0
Fiction/Nonfiction
Nonfiction
Word Count
0
Page Count
32
Description
Rub your hands together. The quicker you move them, the warmer they feel. This is from friction and the movement of energy. Although energy may change forms, it cannot be created or destroyed. But where does the energy go?