States of Matter Key Terms

2. a form, or state, of matter that flows, has a fixed volume, and takes the shape of its container
5. A change of state that cannot be reversed, or is very hard to reverse.
6. How much space something takes up.
7. A substance made from crude oil; it is heated and formed to make plastic products.
10. Anything that takes up space and has mass.
11. Any thing that could affect what happens in an experiment.
12. A form, or state, of matter that has a definite shape and volume; its shape does not depend on the shape of the container holding it
13. A property of something is what it looks like or how it behaves.
15. When matter has a change of state that is reversible, the matter can change back to its original state.
16. The physical form that matter can take; there are three states of matter—solid, liquid, and gas.
18. Anything that is used to prevent food or other things from losing heat or gaining heat too quickly.

1. A change of state that can be reversed or changed back.
3. Something that is human made
4. Water in a gas state in air; you cannot see water vapour.
8. When matter changes from one state to another state.
9. When matter has a change of state that is non-reversible, the matter cannot change back to its original state.
14. Describes the process of heating plastic resin and forcing it out through a speciallyshaped nozzle to make useful products.
17. A form, or state, of matter that takes the shape and volume of its container.