Across
- 3. First Satellite sent into space
- 5. He discovered Saturn's rings
- 7. Humans have 23 pairs of these
- 10. Pig's largest living relative
- 11. Closest plant to the Sun
- 15. Earth's galaxy (2 words)
- 16. Sense most likely lost if struck by lightening
- 18. Force that holds us to the Earth
Down
- 1. These mammals travel in pods
- 2. She had arachnaphobia (3 words)
- 4. Strongest muscle in the human body
- 6. Most intelligent creature on Earth after man
- 8. Located in the innermost part of a bone
- 9. Location of smallest bone in the human body
- 12. Fast land animal on Earth
- 13. What do we call a baby goat?
- 14. The human body's largest organ
- 17. Name of Saturn's largest moon