WHAT IS HEAT?

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Across
  1. 2. When an object is heated, it's _____ rises
  2. 4. How many states of matter are there?
  3. 8. Transfer of thermal energy by wave energy.
  4. 10. Transfer of thermal energy that happens in fluids (liquids and gases).
  5. 11. State of matter in which particles are arranged close together but can slide over one another. They can keep their shape only in a container.
  6. 12. The change of state from liquid to solid.
  7. 13. When heat is transfered to a colder object, it's particles begin to _____ faster.
  8. 14. The change of state from solid to liquid.
  9. 15. The change of states from gas into liquid.
Down
  1. 1. The movement of thermal energy from one object to another.
  2. 3. Every single object is made up of _____.
  3. 5. The change of state from liquid to gas.
  4. 6. State of matter in which the particles are free to move around and can spread freely in an open space.
  5. 7. State of matter in which particles are held together with strong bonds so the object keeps it own shape and size.
  6. 9. Transfer of thermal energy that happens between two objects that are touching.