The Material World

6. a push or a pull that acts on an object
7. a measure of how heavy an object is, determined by the pull of gravity on it
9. the amount of "stuff" or matter inside an object
11. the change in position of an object
13. the amount of space between two points, objects, or place
14. moving or related to movement
15. a measure of how steep a hill, road, or line on a graph is
16. the practice of protecting Earth’s natural resources to ensure they are not wasted, lost, or destroyed

1. power that makes things go, move, and change
2. having the ability, promise, or possibility to grow, develop, or become something more
3. doing a task well without wasting time, energy, or materials
4. an object’s natural laziness or resistance to changing its motion
5. any change in an object’s speed or direction, not just speeding up
8. a state of perfect balance, where opposite forces cancel each other out, resulting in no net change and stability
10. a measure of how fast an object is moving or how quickly it covers a certain distance
12. how fast something moves in a specific direction
15. the force that draws material objects towards each other