Across
- 2. astronomer __ is a scientist who studies stars, planets, and other objects in space.
- 7. The gases that surround Earth are called the __.
- 11. __ is the force that repels the motion of objects.
- 13. __ is the rate of change of velocity.
- 14. __ is the amount of force acting on an object due to gravity.
Down
- 1. Gravity is the force that pulls objects toward the center of __.
- 3. Sir Isaac ___ is famous for developing the laws of motion.
- 4. Mass is the amount of __ an object contains.
- 5. __ does not change based on where you are.
- 6. he Sun's gravity keeps Earth in its __ around the Sun.
- 8. The Moon's gravity causes the __ tides on Earth.
- 9. Weight can change depending on the __ of gravity at a location
- 10. Gravity is the __ that pulls objects to the center of Earth.
- 12. The Moon’s gravitational pull is strongest during __ tide.