How much do you know about Solar Energy?

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Across
  1. 2. Albert Einstein described the nature of light and the photoelectric effect on which photovoltaic technology is based, for which he later won a Nobel Prize in __________.
  2. 3. When light energy strikes a solar cell, electrons are knocked loose from the atoms in the __________ material.
  3. 6. Sunlight has to be __________ throughout the year for solar energy to be work well.
  4. 7. Materials that exhibit a property known as the __________ effect absorb photons of light and release electrons.
  5. 8. Also known as basic photovoltaic cells.
  6. 9. Makes up 90% of the Earth's crust.
  7. 10. Multiple photovoltaic modules can be wired together to form an __________.
Down
  1. 1. The conversion of light into electricity at the atomic level.
  2. 4. Solar energy can last for a very long time, surpassing __________ fossil fuel reserves.
  3. 5. Types of energy sources such as coal and natural gas.