Science

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Across
  1. 2. Needed for photosynthesis
  2. 4. Transfer of thermal energy by direkt particle to particle contact
  3. 5. energy The kinetic and the potential energy of all the particles
  4. 6. Mass per unit volume
  5. 7. Change of state from liquid to gas
  6. 10. Water boils at 100°_
  7. 11. Transfer of thermal energy
  8. 12. The degree to which a surface reflects light
Down
  1. 1. Materials that have a restricted or limited ability to transfer thermal energy
  2. 3. _Energy is the energy that a substance has due to it´s motion
  3. 4. The transfer of thermal energy through the movement of particles
  4. 5. The avarage kinetic energy
  5. 8. Kind of energy that can travel through empty space
  6. 9. Thin layer around the Earth