unit 22 vocabulary

12345678
Across
  1. 1. The study of the natural world
  2. 5. Tool used to see faraway objects in the sky
  3. 6. Continent where chimps live
  4. 8. The area around the Earth where stars and planets are
Down
  1. 1. A person who studies science
  2. 2. A test to learn something new
  3. 3. Tool used to make voices louder
  4. 4. Huge balls of hot gas that shine in the night sky
  5. 7. Wild primates closely related to humans