Across
- 3. The transfer of energy via the movement of particles in currents within a fluid.
- 6. The changing of a liquid to a gas.
- 7. The amount of matter in a given space (volume). To calculate density, divide the mass of a substance by its volume.
- 8. The changing of a solid to a liquid.
- 11. The theory stating that matter consists of small particles in random motion.
- 14. A physical change that occurs as matter goes from one state to another. A change of state is also called a phase change.
- 15. Thermal energy that is transferred from one object or location to another.
- 16. The transfer of energy by electromagnetic waves as they travel through space or matter.
- 18. The energy in an object or a system due to the total kinetic energy of its particles.
- 20. A state of matter typically in the form of hot, gas-like clouds, such as those that make up the Sun and other stars.
Down
- 1. The state in which matter has a set volume but can change in shape.
- 2. A circular flow of matter within a fluid that is a result of temperature differences.
- 4. The state in which matter has a set shape and volume.
- 5. A form in which matter can exist, such as solid, liquid, or gas. A state of matter is also called a phase.
- 9. A liquid, gas, or plasma. A fluid is made up of matter that can flow.
- 10. The changing of a gas to a liquid.
- 12. The transfer of energy from one object to another by direct contact. Thermal energy transfers between colliding particles that make up matter at different temperatures.
- 13. The changing of a liquid to a solid.
- 17. A measurement of the average amount of kinetic energy of the particles in a sample of matter.
- 19. The state in which matter can change in both shape and volume.