• Tape
• Water
• Mirror
• Scissors
• White Card
• Dark Room
• Clear Plastic Box
• Flashlight/Torch
• Black Construction (thick) Paper
Steps:
1. Using the black paper, cut out the shape of
your flashlight/torch face (area that the light comes out).
2.
Cut a small slit in the middle of the black paper cover which you
have just cut out.
3. Place
the black paper cover over your flashlight/torch and secure it
with tape.
4. Fill the plastic box half way with water.
5. Stand the mirror in the water so it leans against the
end of the box at an angle..
6. Point your torch so the light beam shines on the mirror
through the water (the flashlight/torch should be on the outside
of the container and not submerged in the water).
7. Hold up the white card so reflected light coming from
the mirror can shine on it.
You can see a rainbow on the white
paper. When
light travels through water, the light beam slows down and bends. The
seven different colors that make up the rainbow all travel at different
speeds and therefore each color bends at a slightly different
angle. The
mirror reflects the different colors so that you see a rainbow
or spectrum of the seven separated colors.