Chemical Reactions

3. to change the order or position of something
5. something that is made of all the same atoms or groups of atoms
7. the temperature at which a substance changes from the solid phase to the liquid phase
9. letters and numbers showing the types and number of atoms that repeat to make up a substance
12. a substance that is added to soil to help plants grow
14. a process in which atoms rearrange to form new substances
15. an ending substance that is made during a chemical reaction
16. something that can be observed about a substance, such as color, smell, or boiling point

1. a starting substance that is part of a chemical reaction
2. the temperature at which a substance changes from the liquid phase to the gas phase
4. the tiny pieces that all matter—all the stuff in the world—is made of
6. a group of atoms joined together in a particular way
8. the relative size of things
10. a structure formed by repeating groups of atoms that link together in a large network
11. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
13. able to cause damage