Across
- 3. an attraction between atoms.
- 4. takes up space and can be weighed
- 5. chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
- 7. raw materials that react with one another and form products.
- 9. the amount of space occupied by a sample of matter.
- 10. a simple substance that cannot be broken down into smaller parts or changed into another substance.
- 12. the processes by which chemicals interact to form new chemicals with different compositions.
- 13. the quantity of matter within a given object.
- 14. the study of matter—what it consists of, what its properties are, and how it changes.
- 15. The smallest part of a substance that cannot be broken down chemically
Down
- 1. The smallest particle of a substance that has all of the physical and chemical properties of that substance.
- 2. The chemical substances which are formed due to a chemical reaction between two or more chemical substances
- 4. a physical combination of two or more substances that aren't chemically joined.
- 5. The ability to do work or cause change
- 6. a substance made from two or more different elements that have been chemically joined.
- 8. a measure of the average kinetic energy of the atoms or molecules in the system
- 11. the release of heat.
- 14. the attraction of molecules for other molecules of the same kind