Machines and energy crossword 5B

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Across
  1. 2. Machine that has no moving parts
  2. 4. Simple machine that holds materials together.
  3. 5. Simple machine used for pulling heavy things up
  4. 9. Earth´s magnetic field protects us from ________
  5. 11. An oven is a _________ machine.
  6. 12. Thing used for navigating that uses Earth's magnetic field
  7. 13. An axe is this type of simple machine
  8. 14. Electric currents are flow of electrical __________
  9. 16. + and - poles ___________ attract each other
Down
  1. 1. Magnets have a south and a north _________
  2. 2. Don´t put the knife in the power outlet, you might get an electric __________
  3. 3. Two positive poles _______ each other
  4. 5. Connect the plug to the power outlet
  5. 6. Discharge of electric charges between Earth and sky
  6. 7. Material that electric current flows through very easily
  7. 8. One of the metals in Earth´s core
  8. 10. Material that we want to have on the outside of a cable
  9. 15. Electric circuits are broken by pressing a ___________