Across
- 4. Galilei created it
- 6. the study of life
- 8. the study of natural reactions
- 9. you can watch the stars using it
- 10. the study of the natural phenomenon
Down
- 1. because of it you may take the shock
- 2. the study of space
- 3. the study of our body
- 5. something you have to demonstrate
- 7. you can charge devices using it