Across
- 5. If we are facing away from the sun, the season is
- 9. is the old model with Earth in the center of the Solar System
- 11. we have THESE because of Earth's 23.5 degree tilt
- 14. this word means "half" like half of the Earth
- 17. when Earth goes around the Sun
- 20. when Earth spins on its axis
- 21. this celestial object revolves around the Earth and Sun
- 23. light hits the ground ______ when it is summer
- 24. light hits the ground ________when its winter
- 25. This is the hemisphere we live in
- 28. Earth's axis is _____
- 29. how long does an Earth rotation take?
- 30. which has more mass?: the earth, the sun, or the moon
Down
- 1. we have seasons because of Earth's ______
- 2. how long does a revolution around the sun take for Earth?
- 3. an invisible line through the north and south poles
- 4. third planet from the sun
- 6. this is the invisible line in the center of Earth
- 7. which has the least mass?: the earth, the sun or the moon
- 8. is our current model with the Sun in the center of the Solar System
- 10. study of space
- 12. is the path that the Earth takes when it revolves around sun
- 13. if we are facing toward the sun, the season is
- 15. the shape of Earth's orbit around the sun
- 16. our yellow star
- 18. This is the hemisphere we do not live in
- 19. another word for "rotation"
- 22. The sun's ______is the reason planets go around the sun
- 26. which has more gravity: the earth or the moon?
- 27. Earth's twin planet