Science 8 Section 3

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Across
  1. 2. Is the physical form of the device that makes it usable
  2. 4. A key used to open cans
  3. 6. Many discoveries and advancements are made by trial and
  4. 8. In evaluating a mechanical device you are looking for the best combination of effectiveness and
  5. 10. What the device is supposed to do
Down
  1. 1. trains that use electricity and magnets
  2. 3. Consideration when designing any device, how it will effect the device and how the device will effect it
  3. 5. Used to open Iron can, a _________ and chisel
  4. 7. An evaluation criteria that focuses on consumer protect
  5. 9. Used to replace human workers