Make a Rainbow

What you need

- a clear glass

- small mirror

- water

- sunlight

attention: If under 18 adult supervision required

Fill the glass with water. Put the mirror into the glass at an angle. Position the glass so that sunlight shines directly at the mirror. You may have to shift the mirror to find the right angle. Look for a reflection on the wall. It will be easier to see if the room is dark. Adjust the angle of the mirror until you see a rainbow on the wall.