Technology and Earth and Space

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Across
  1. 2. leather has a ________ origin
  2. 5. a ___________ control is a device that controls the motion of a technical object's moving parts. It can be either translational or rotational
  3. 7. What process is defined as the wearing away and transformation of soil and rock.
  4. 8. An energy source that replenishes naturally and is abundant enough that it can be used continuously more or less forever
  5. 10. In which layer of the atmosphere would you find shooting stars(meteorites)
  6. 12. Rocks are natural materials made of __________
  7. 15. the water vapour released from living things in the water cycle
  8. 17. A simple machine that consists of two inclined planes placed back-to-back
  9. 19. A ___ class lever has the load in the middle
Down
  1. 1. Which gas occupies 21% of the atmosphere
  2. 3. Metal has a ________ origin
  3. 4. A snow shovel is an example of this simple machine.
  4. 6. Orogenesis can be found at what type of boundary of two tectonic plates
  5. 9. that enter a system and help it function
  6. 11. The lithosphere is made up of the crust and the upper most portion of the _______.
  7. 13. a __________ is anything that helps connect two or more parts of a technical object together
  8. 14. A ____ material is a natural substance makes up other materials
  9. 16. This type of simple machine is used to raise and lower a flag on a flagpole
  10. 18. ________ water makes up 30% of the fresh water on earth