Across
- 2. The phase when the sunlit side of the Moon is facing towards Earth
- 5. An event where one object in space blocks another from view
- 7. An attractive force between any two objects that have massOn Earth, gravity pulls objects towards Earth's centre. In space, it keeps objects in orbit.
- 9. model A model of the Solar System in which Earth is at the centre
- 10. A planet made up mostly of icy materials Uranus and Neptune are ice planets.
- 11. The time it takes a planet to rotate once
Down
- 1. A half of the Earth, either north or south of the EquatorThe United States is in the northern hemisphere.
- 3. A representation of an idea, object or system
- 4. moon Any phase when less than half of the sunlit side of the Moon can be seen
- 6. When the Moon passes into the Earth's shadow
- 7. A group of millions or billions of stars
- 8. A large space rock that orbits the Sun
