YOU WILL NEED

 

• 

wide-mouthed, smooth, circular glass jar or large plain drinking glass filled with water

• 

small mirror

• 

flashlight
 

STEP 1:

Place the mirror inside the water-filled jar. Tilt the mirror slightly upward.

STEP 2 : 

In a very dark room with white walls, shine the flashlight onto the mirror. A rainbow appears!

 

Hint: If no rainbow appears at first, just change the angle of light from the flashlight or change the angle of the mirror.

WHY DOES THE RAINBOW APPEAR?

The mirror reflects light that passes back through the water, traveling at an angle. The water refracts, or bends, the light. As light bends, it separates into the colors of the rainbow—red, orange, yellow, green, blue, and violet.

 

For more information, visit http://www.nationalgeographic.com/ngkids/trythis/try6.html