Across
- 3. A scientist who studies space
- 7. An imaginary line around the middle of earth
- 9. Small, rocky objects that orbit the Sun.
Down
- 1. The earth's movement around its axis is called ________.
- 2. The smallest planet in our solar system.
- 4. The curved path the earth undertakes around the sun.
- 5. The earth's movement around the sun is called ________.
- 6. The largest planet in our solar system.
- 8. An imaginary line that goes through earth
