Unit 7 Vocabulary Review

123456789
Across
  1. 2. When something (like a spacecraft) comes down to the ground or a surface.
  2. 5. The action of moving around a planet or star.
  3. 6. The area outside Earth's atmosphere where stars and planets exist.
  4. 9. A vehicle designed for traveling in space.
Down
  1. 1. A machine that flies into space, used to carry people or things.
  2. 3. A person who works on the ISS.
  3. 4. The Sun and all the planets are part of it.
  4. 7. A large object that moves around a star, like Earth moves around the Sun.
  5. 8. When something (like a rocket) starts to rise into the air.