THermal energy croossword

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Across
  1. 2. something that turns different
  2. 4. energy if a something rolls down a hill
  3. 5. when something stays balanced
Down
  1. 1. is something that your does need and is bad and good
  2. 2. the moment when two objects hit
  3. 3. a balanced state in which a system is stable, such as when two or more samples are at the same temperature
  4. 6. a measure of heat and cold