Source+7

"Solar Energy Science Project Topics: What are Solar Panels?." //Science Fair Project Topics in Solar Energy//. N.p., n.d. Web. 23 Sept. 2012. <[]>.

Facts
 * 1) Solar panels collects heat.
 * 2) It's called heat solar thermal energy.
 * 3) Solar panels and Photovoltaic panels are different devices.
 * 4) Solar panels use the sun's heat.
 * 5) Photovoltaic panels turn the sun's light into electricity.
 * 6) The solar panel uses a transparent piece of glass on a box to contain the heat.
 * 7) It's modeled after a green house.
 * 8) The bottom of the solar panel is painted black to absorb more heat.
 * 9) The most common use of solar panels are to heat up water or air.
 * 10) In the box, a pipe is put in to heat water flowing through it.
 * 11) The sun heats the air in the box and the air heats the pipe.
 * 12) We'd heat up air to warm a house.
 * 13) Heating up water would allow people to take a warm bath.