Concentrated Solar Power
Concentrated Solar Power is when mirrors focus sunlight into one spot to make strong heat.
A hand lens held over a flat tray on a sunny day shows this well. The lens pulls sunlight from a wide space and bends all the rays toward one small spot. That spot gets far more heat than any other part of the tray. Big power plants use rows of flat mirrors to aim light at one small point the same way.
Explaining concentrated solar power by grade level
You can use a mirror to aim sunlight at one spot. That spot gets very hot. If you add more mirrors, it gets even hotter. That is how people use the sun to cook food.
Projects that explore concentrated solar power
A solar furnace works by bouncing light from many mirrors onto a single point. Each mirror you add increases the heat at that spot, because every additional mirror sends more sunlight to the same target. A large array of 256 mirrors or more can focus sunlight so intensely that the focal spot reaches temperatures high enough to melt steel.
Concentrated solar power works by reflecting light toward a single point called the focal point. A parabolic shape lined with foil directs sunlight to that spot. You can test the focal point with sunlight and see a bright spot where the light concentrates.