Heat Review

1. Phenomenon in which certain gases in the Earth's atmosphere trap and re-radiate heat energy, leading to a warming effect on the planet's surface and influencing its climate
2. Increase in size, volume, or dimensions of a substance or object due to an increase in temperature
4. Transfer of heat through the movement of fluid (liquid or gas)
7. Extremely small units of matter that make up all substances
8. Transfer of heat energy through electromagnetic waves, such as infrared waves
9. Average kinetic energy of particles in a substance or system, indicating how hot or cold it is
11. Ability to do work or cause change
14. Heat transfer through direct contact between objects or substances
16. Decrease in size, volume, or dimensions of a substance or object due to a decrease in temperature
17. State of matter characterized by a definite volume but no definite shape, where the particles are close together but can move and flow past each other
18. State of matter characterized by a lack of definite shape or volume, where the particles are widely spaced and have high freedom of movement

1. Gases in the Earth's atmosphere that can trap and retain heat
3. Model that explains that all matter is composed of tiny particles that are in constant motion and have space between them
5. State of matter characterized by a definite shape and volume, where the particles are closely packed together
6. Process in which a gas or vapor changes into a liquid state, usually due to a decrease in temperature
10. Type of energy that moves from a hotter object to a cooler object
12. Process in which a liquid changes into a gas state at a temperature below its boiling point, occurring at the surface of the liquid
13. Process in which a substance changes from a solid state to a liquid state, usually as a result of an increase in temperature
15. Process in which a substance changes from a liquid state to a solid state, usually due to a decrease in temperature