How the World Works

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Across
  1. 3. F___________ slows things down when they rub together.
  2. 4. Push and pull are f___________.
  3. 5. A simple tool with a sharp edge used to cut or split. W_________
  4. 6. The force of magnets when they attract or repel each other is called m_________.
  5. 7. A simple machine that helps lift things with a rope and wheel. P________
  6. 10. A flat surface that is tilted like a ramp. I______ p_________
  7. 11. Things we use to make other things, like wood or metal. M____________
  8. 12. To move something toward you is p________.
  9. 14. To make something better or new. I_______________
Down
  1. 1. A tool used to turn screws. S___________
  2. 2. Using energy to move or change something is w_________.
  3. 5. A simple machine that helps move things with a wheel and rod. W____ and A______
  4. 8. A set of challenges to move through. O_______ C________
  5. 9. A tool used to make holes. D____________
  6. 13. The force that pulls things to the ground. G_________