Across
- 1. something that is made of all the same atoms or groups of atoms
- 6. the relative size of things
- 7. a group of atoms joined together in a particular way
- 10. letters and numbers showing the types and number of atoms that repeat to make up a substance (2 words)
- 12. the tiny pieces that all matter - all the stuff in the world - is made of
- 13. able to cause damage
- 14. a substance that is added to soil to help plants grow
- 15. the temperature at which a substance changes from the liquid phase to gas phase
Down
- 2. a process in which atoms rearrange to form new substances (2 words)
- 3. an ending substance that is made during a chemical reaction
- 4. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
- 5. the temperature at which a substance changes from the solid phase to the liquid phase (2 words)
- 8. to change the order or position of something
- 9. a starting substance that is part of a chemical reaction
- 11. something that can be observed about a substance, such as color, smell, or boiling point