Key Questions. What is light? How can we make light?Why are there different colors of light?How does light behave in a prism?. Let it glow, let it glow, let it glow. Take white board and keep white side facing up. Don\'t look at the bottom!When I say go, flip board over so white side is down. Place part of a hand over the square. Keep hand there!When lights go out, remove hand and observe..