Across
- 3. atoms move fast and randomly
- 5. smallest part of an element
- 9. orbits the nucleus of an atom
- 10. uses grams and measures weight
Down
- 1. educated guess
- 2. What is the SI unit of energy?
- 4. Which is the main gas that makes up the Earth's atmosphere?
- 6. What is the aggregate of all forces exerted on an object called?
- 7. What is the SI unit of force?
- 8. the amount of space something takes up