Space

12345678
Across
  1. 2. The only planet with life.
  2. 4. Brilliant gas ball
  3. 5. Quantity of light
  4. 8. three dimensional extend where objects and events occur and have relative position and direction.
Down
  1. 1. Billions of stars together with gas
  2. 3. Very hot and made with hydrogen and helium
  3. 6. A natural satellite orbiting the sun
  4. 7. System 8 planets orbiting the sun