Across
- 2. The sun is the nearest _____ to Earth
- 6. The motion of one object orbiting another
- 7. Nuclear _________ generates the heat of the sun.
- 8. One rotation of the Earth is equal to one _____
Down
- 1. The Path an object follows around another object
- 3. The line which the earth rotates around is called the rotation _____
- 4. What keeps the Earth in the sun's orbit?
- 5. The central part of the sun.