G7 Unit 3: Thermal Energy

1. one of the distinct forms in which matter can exist. They are observable in everyday life as solids, liquids, gas.
5. A material that readily allows heat to flow through it.
6. To take in or soak up energy.
7. The transfer of thermal energy from a hotter object to a colder one, often perceived as a sensation of warmth.
8. an attribute, quality, or characteristic of something, such as color, shape, or state of matter
11. The transfer of heat through the movement of a fluid (like air or water), where warmer fluid rises and cooler fluid sinks.
12. Particles are close together but move more freely, allowing the substance to flow.
13. To let go of or give off energy.
15. Particles are far apart and move rapidly in random directions.
16. The transfer of heat through electromagnetic waves, like the sun's rays reaching Earth.
17. The energy contained within a system due to the movement of its particles, essentially the "heat energy" within a substance; measured by temperature.
18. The transfer of heat through direct contact between objects, where energy is passed from molecule to molecule via collisions.

2. A measure of the average kinetic energy of particles in a substance, indicating how hot or cold it is.
3. A chemical reaction that releases heat energy to its surroundings.
4. The process of energy moving from one system to another, like heat transferring from a hot object to a cold one.
9. Particles are tightly packed and vibrate in fixed positions.
10. A material that resists the flow of heat, meaning it does not easily transfer thermal energy.
14. A chemical reaction that absorbs heat energy from its surroundings.