Across
- 3. n. the small, bright lights that you see in the sky at night
- 4. n. Earth and all the stars, planets, and everything else in space.
- 7. noun the force that pulls everything toward the earth
- 9. noun how far it is from one place to another place
- 11. noun (1) the outside part of something (2) the top of water
- 13. n. a very large group of stars and planets
- 14. adj. very big
- 18. noun all physical substances, or a substance of a particular kind
- 19. n. A long, round piece of equipment with special glass inside it. You look through it to make things that are far away appear bigger.
- 20. noun the central part of an object
- 21. adj. on the outside; far from the center
- 22. n. (1) the big object that shines in the sky at night; (2) an object like Earth’s moon that moves around another planet
- 23. noun a straight line across a circle, through the center
- 25. noun objects, such as those in space or on Earth. Moons and planets are bodies in space.
- 26. n. a piece of rock from the space that hits the earth’s surface
- 27. verb to travel around a new place to learn about it
- 28. v. dived or stayed in a place
Down
- 1. n. a building where scientists can watch the stars, the weather, etc., using special instruments
- 2. n. a round, flat object
- 5. probe noun a spacecraft without people that collects information and sends it back to Earth
- 6. adj. not like anyone or anything else
- 8. adj. inside; toward or close to the center
- 10. n. a vehicle that travels in space
- 12. n. a mass of ice and dust that moves around the sun and looks like a bright star with a tail
- 15. n. a very small spot, mark, or piece of something
- 16. n. any of the many small, rocky bodies that go around the sun
- 17. system n. the sun and the planets move around it
- 20. noun large holes in the ground, caused by something large hitting them
- 21. noun the path of a planet or an object that is moving around another thing in space
- 24. noun a person who studies or knows a lot about the sun, moon, planets, and stars