7th Grade Energy and Matter

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Across
  1. 2. energy, stored energy due to the interactions between objects or particles
  2. 4. the measure of the average kinetic energy of the particles in a material
  3. 6. energy, the result of the motion of all the particles, and the distance and attractions between those particles in the system
  4. 7. object, the object that gains energy from the energy transfer
  5. 10. equilibrium, when the temperatures of materials that are in contact are the same
  6. 11. the transfer of thermal energy from one material to another by electromagnetic waves
  7. 13. the change in state from a liquid to a gas
  8. 15. the movement of substances from an area of higher concentration to an area of lower concentration
  9. 17. object, the object that provides energy for energy transfer
  10. 18. the transfer of thermal energy from a region of higher temperature to a region of lower temperature. Heat can also refer to the amount of energy transferred during this process
  11. 19. system, a system that does not exhange matter or energy with the environment
  12. 22. energy due to motion
  13. 23. the transfer of thermal energy by collisions between particles of matter
Down
  1. 1. an increase in a material's volume when the temperature is increased
  2. 3. insulator, a material through which thermal energy does not flow easily
  3. 5. the study of heat
  4. 8. movement in all directions and at different speeds
  5. 9. system, a system that exchanges matter or energy with the environment
  6. 12. heat, the amount of thermal energy it takes to increase the temperature of 1kg of material by 1 degree celsius
  7. 14. a decrease in a material's volume when the temperature is decreased
  8. 16. conductor, a material through which thermal energy flows easily
  9. 20. the process by which a gas changes to a liquid
  10. 21. the transfer of thermal energy by the movement of particles from one part of a material to another