Boy Who Harnessed the Wind Lesson 3

123456
Across
  1. 3. appliances such as electric heaters, electric ovens, and toasters use these to turn current into heat.
  2. 5. an extended period of abnormally low rainfall, leading to a shortage of water.
  3. 6. the branch of science concerned with the nature and properties of matter and energy
Down
  1. 1. something made without preparation or with only what was available
  2. 2. This is a semiconductor device that acts as a one way switch for current.
  3. 4. pulled tightly so there is no slack
  4. 5. A generator