Across
- 1. when atoms join together, they form ____
- 4. how hot or cold something is
- 6. solid, liquid, or gas
- 7. tool to see very small particles
- 13. made of only 1 type of molecule
- 14. color, flavor, hardness, state of matter
- 15. a mixture of several types of gases
- 16. to show or explain molecules we use ______
Down
- 2. where will you find citric acid?
- 3. everything around us is made of _____
- 5. matter is made of tiny particles called ____
- 8. when a molecule has + and - ends
- 9. made mostly of copper atoms
- 10. contains different atoms or molecules
- 11. made mostly of keratin molecules
- 12. example of a gas