Across
- 2. movement the speed at which particles move
- 5. a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the original properties
- 6. the tiny particles that make up matter
- 8. a substance made up of various types of particles that occupy physical space and have inertia
- 11. type of matter that keeps its shape
- 13. is the movement of particles from an area of higher concentration to an area of lower concentration
- 14. the contraction decreases in the volume of a material when particle motion decreases
- 16. system is a physical system that does not exchange matter with its surroundings, but can exchange energy with them
- 17. bond - a force of attraction between a liquid
Down
- 1. a minute amount of matter, tiny particles of dust
- 3. the smallest part of a substance that cannot be broken down chemically
- 4. measure of the average kinetic energy of the particles in a material
- 7. is a change in position compared to a place or an object that is not moving
- 9. expansion is the increase in volume of a material when particle motion increases
- 10. energy - uses the added energy increasing the motion energy of the particles
- 12. a push or a pull on an object that is caused by an interaction with another object
- 15. a type of matter that has no defined and independent structure, shape, or volume but tends to expand indefinitely