Across
- 3. A school subject requiring physical exercise
- 4. A force that pulls objects together
- 7. A word that describes a noun
- 10. To reuse materials instead of throwing them away
- 11. A huge group of stars, dust, and gas
- 12. A huge star that is located in the center of the solar system
- 13. The ability to do work or cause change
- 17. A living thing
Down
- 1. The study of events and people from the past
- 2. The remains of plants or animals from long ago
- 5. A branch of mathematics that uses letters and symbols to help solve problems
- 6. The grown-ups that helps us learn something new in school
- 8. An animal with feathers and wings
- 9. A subject that studies nature through experiments and observation
- 13. A subject that focuses on reading, writing, and speaking
- 14. The planet where we live
- 15. An animal that has fur or hair and feeds milk to its young
- 16. The subject with adding and subtracting