SPACE CROSSWORD

123456789
Across
  1. 3. When the moon becomes gradually more visible.
  2. 5. A push or pull on an object when it interacts with another.
  3. 8. When the moon becomes gradually less visible.
  4. 9. The force that pulls objects towards each other.
Down
  1. 1. Our galaxy that contains over 200 billion stars.
  2. 2. A person trained to travel in a spacecraft.
  3. 4. Small, rocky objects that orbit the Sun
  4. 6. A cavity in the ground of a celestial object, typically caused by explosions or meteor impact.
  5. 7. The star that objects in our solar system orbit.