Across
- 1. measure of the quantity of matter within an object
- 3. when atoms or molecules are closely packed close
- 4. procedure that attempts to measure observable predictions to test a theory or a law
- 5. a proposed explanation for observations and laws
- 7. normally the first step in scientific method
- 8. mass divided by volume
Down
- 2. a theory stating that all matter is composed of tiny particles called atoms
- 6. a measure of space
