Chemical Reactions

5. the tiny pieces that all matter
8. a starting substance that is part of a chemical reaction
10. example of rust
13. to change the order or position of something
14. a group of atoms together
16. something that can be observed about a substance, such as color, smell, or boiling point

1. temperature at which a substance changes from the solid phase to the liquid phase
2. some of this can kill bees
3. a structure formed by repeating groups of atoms linked together in a large network
4. the relative size of things
6. something that is made of all the same atoms or groups of atoms
7. an object, diagram, or computer program that helps us understand something by making it simpler or easier to see
9. a model volcano is an example of
11. 100 degrees Celsius 212 Fahrenheit
12. to solution of a multiplication equation
15. letters and numbers showing the types and number of atoms that repeat to make up a substance