Introduction to Matter

2. The amount of space that matter occupies.
5. A neutral group of two or more atoms held together by covalent bonds.
7. A measure of how much mass of a substance is contained in a given volume.
9. A measure of how much matter is in an object.
10. A measure of the force of gravity acting on an object.
12. A change in which one or more substances combine or break apart to form new substances.
13. A characteristic of a pure substance that can be observed without changing it into another substance.
15. Two or more substances that are together in the same place but their atoms are not chemically bonded.
16. A single kind of matter that is pure and has a specific set of properties.

1. A pure substance that cannot be broken down into other substances by chemical or physical means.
3. Involves separating liquids by boiling them.
4. A change that alters the form or appearance of a material but does not make the material into another substance.
6. A characteristic of a substance that describes its ability to change into different substances.
8. Anything that has mass and takes up space.
11. A substance made of two or more elements chemically combined into a specific ratio or portion.
14. The basic particle from which all elements are made.