2. Space

3. 1.One partner faces the board, one partner faces away from the board. 2.The partner facing the board says the word to his or her partner. 3.The partner facing away from the board spells the word. His or her partner marks it correct or incorrect. 4.When a sign appears, do what it says.

4. 1.asteroid belt

5. Partner facing away from the board: Spell “belt” backwards.

6. 2.comet

7. 3.constellation

9. 4.galaxy

10. 5.gravitational pull

11. 6.lunar phases

12. Both: Draw a full moon and first quarter. Show it to each other.

13. 7.meteor

15. 8.meteorite

16. 9.orbit

17. Partner facing the board: Act out the word “revolution.” See if your partner can guess the word.

18. 10.revolution

19. 11.rotation

20. 12.spectroscope

22. 13.axis of rotation

23. 14.hemisphere

24. 15.reflection

25. 16.celestial object

27. 17.gravitational force

28. Stare at each other. See who laughs first.

29. 18.telescope

30. 19.universe

32. 20.seasonal