Inventions

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Across
  1. 2. a machine that blows out hot air for drying hair
  2. 3. a small object at the end of a wire that is used for connecting a piece of electrical equipment to the main supply of electricity
  3. 5. a heat engine that performs mechanical work using steam as its working fluid
  4. 6. a flow of electricity through a wire
  5. 7. an explosive substance used in bombs and fireworks the part of a camera through which light travels onto the surface where the image is recorded
Down
  1. 1. an object that you use to connect two pieces of equipment to the same power supply
  2. 4. the glass object inside a lamp that produces light
  3. 5. a place in a wall where you can connect electrical equipment