Across
- 2. one of the four forms in which matter can exist: the three main states of matter are solid, liquid, and gas
- 7. a substance that cannot be broker down into any other substance, such as gold, oxygen, and neon
- 9. a characteristic of an individual or thing: a trait
- 10. the amount of matter in something
Down
- 1. the material from which all substances are made
- 3. a tiny particle of matter that is made up of combined atoms
- 4. the amount of mass in a given volume
- 5. a measure of the force with which a mass is attracted toward another, larger body, such as a planet: distinct from mass
- 6. the smallest unit of the type of matter that normally appears on the Earth
- 8. the amount of space that something takes up