Chemical Reactions

2. to change the order or position of something
6. the temperature at which a substance changes from the liquid phase to the gas phase
7. a group of atoms joined together in a particular way
10. a structure formed by repeating groups of atoms that link together in a large network
13. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
14. able to cause damage
15. an ending substance that is made during a chemical reaction

1. a starting substance that is part of a chemical reaction
3. a process in which atoms rearrange to form new substances
4. the tiny pieces that all matter—all the stuff in the world—is made of
5. the temperature at which a substance changes from the solid phase to the liquid phase
8. a substance that is added to soil to help plants grow
9. something that is made of all the same atoms or groups of atoms
11. the relative size of things
12. something that can be observed about a substance, such as color, smell, or boiling point
16. letters and numbers showing the types and number of atoms that repeat to make up a substance