There are many ways to collect data about solar cells. The following information should help you judge whether solar energy power can be pollution-free. Which one does NOT? 1.Calculate Calculate how how much much it it costs costs to to make make one one panel. panel.
2.Observe Observe a a cell cell in in your your hand hand while while it it makes makes electricity. electricity.
3.Measure Measure the the amount amount of of electricity electricity to to make make one one solar solar panel. panel.
4.Observe Observe that that the the ground ground outside outside one one manufacturing manufacturing plant plant turned turned white. white.