Matter vocab

2. When you burn a fire it gives off ____?
4. A science that deals with the composition, structure, and properties of substances and of the transformations that they undergo.
6. Hydrogen
11. Describes how a substance behaves during a physical reaction.
14. The starting materials in a reaction that undergo a chemical change to form a product.
15. The smallest unit of a substance.
16. The force that holds a piece of matter together.
17. Anything that has mass and takes up space.
19. A substance that is formed as the result of a chemical reaction.
20. Chemical reactions where chemical bonds are either created, broken, or both.
21. The amount of space the object takes up.
22. An attraction between atoms.

1. Everything that can make change or cause something to react has ____?
3. The measure of hotness or coldness (Fahrenheit,Celsius).
5. Chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
7. A process in which one or more substances are converted to one or more different substances.
8. Describes how a substance behaves during a chemical reaction.
9. The material involved in the change are the same before and after the change
10. Two or more substances that are mixed together.
12. The amount of matter that makes up an object.
13. anything that gives off heat (opposite of endothermic.)
18. Basic particles of the chemical elements.
20. H2O