Vocabulary Crossword

2. A substance made up of atoms or ions of two or more elements joined by chemical bonds
5. Anything that has mass and takes up space
6. A homogeneous mixture which two or more substances are uniformly dispersed
12. A sample of matter that is either a single element or a single compound that has definite chemical and physical properties
13. A characteristic of a substance that does not involve a chemical change
14. the measure of gravitational force on an object
15. A substance that cannot be broken down into simpler substances.

1. The smallest unit of a substance that can exist by itself; a group of atoms held together by chemical bounds
3. The ratio of mass to volume
4. a chemical reaction in which material combines with oxygen to form a new material
7. A property of matter that describes the substance's ability to participate in chemical reactions
8. the amount of matter in an object
9. the smallest unit of an object
10. A change that occurs when one or more substances change into a new substance.
11. The amount of space an object takes up
12. the of matter from one form to another without a change in chemical properties