Across
- 7. the state of matter with an indefinite shape and a definite volume
- 8. a measure of the average kinetic energy of the particles of a substance
- 9. to throw back or send back energy
- 10. the colour that absorbs and emits radiant heat the best
- 11. to change from a solid to a liquid
- 13. the state of matter with an indefinite shape and an indefinite volume
- 14. changing from a gas directly to a solid, without a liquid phase
- 17. a decrease in the volume of a substance caused by cooling
- 20. the transfer of radiant energy by means of electromagnetic waves
- 21. this is exerted on a closed container if it contains a gas that is being heated
- 24. an increase in the volume of a substance caused by heating
- 26. to change from a gas to a liquid
- 27. to change from a liquid to a solid
Down
- 1. the state of matter with a definite shape and a definite volume
- 2. the transfer of thermal energy from one part of a fluid to another by a circulating current of faster-moving and slower-moving particles
- 3. energy that all moving objects possess
- 4. a material designed and used to reduce the flow of thermal energy by limiting conduction, convection, or both
- 5. the total kinetic energy and energy of attraction of all the particles of a material
- 6. changing from a solid directly to a gas, without a liquid phase
- 12. to take in or to soak up energy
- 15. an explanation of what matter is made of and how it behaves
- 16. to change from a liquid to a gas
- 18. the transfer of energy from the particles of a warmer object to the particles of a cooler object
- 19. the transfer of thermal energy through a substance or between substances in contact by the collision of particles
- 22. energy that travels in the form of electromagnetic waves through empty space
- 23. a layer of material designed and used to reflect radiant heat energy
- 25. the colour that reflects radiant heat the best