Solar energy

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Across
  1. 5. _______comes from the words photo meaning light and volt
  2. 7. When the PV cell is placed in the sun, the radiant energy energizes the _____ electrons.
  3. 8. Photovoltaic cells are also called PV cells, or _____ cells
Down
  1. 1. Solar cells are made of two thin pieces of __________?
  2. 2. The p-layer has a _______ charge.
  3. 3. One piece of silicon has a small amount of _____ added to it.
  4. 4. A __________ field is formed between the two layers of silicon when the sun shines on it.
  5. 6. Solar-powered toys, __________, and roadside telephone call boxes all use solar cells to convert sunlight into electricity.