SCIENCE ( vocaburaly)

12345678
Across
  1. 3. laying down of matter by a natural process
  2. 4. strength and vitality required for sustained physical or mental activity.
  3. 5. the condition of a region or group as regards material prosperity.
  4. 7. Chemistry. a usually irreversible chemical reaction
Down
  1. 1. natural process of moving rock
  2. 2. energy type of potential energy that is energy due to the position
  3. 6. energy the sum of an object's kinetic energy and potential energy
  4. 8. moving rock