Across
- 3. System The Sun and all the planets, moons, and other objects that move around it.
- 5. To stay on top of a liquid without sinking.
- 7. To become different, such as speed or direction.
- 9. The star at the centre of our Solar System.
- 10. When forces acting on an object are equal, so it stays still or moves at the same speed.
- 11. Large objects that move around a star, like Earth around the Sun.
Down
- 1. The curved path one object takes around another in space.
- 2. The amount of space an object takes up.
- 4. A natural object that orbits a planet.
- 6. To increase speed or move faster.
- 8. When forces are not equal, causing a change in movement.
