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Curious Colors Experiment

Making a Rainbow Spinner

Materials you will need: • Pencil • A Glass • White Card • Hole Puncher • Crayons or Felt Tip Pens This is a color changing experiment!

Steps:

1.  Stand the glass on a piece of white card.
2.  Draw round the base and carefully cut the circle out.
3.  Divide the circle into three, equal-sized sections and color one in blue, one in red and one in green.
4.  Make a hole in the centre of the card (using a hole punch), so that you can fit a pencil through it.
5.  Spin the card on the pencil tip.

What color do you see?  Make lots of spinning discs using different combinations of colors.  What colors do you see when you spin them?

When the spinner moves fast, you see light reflected from all its colors, but your brain cannot separate them.  So you see a mixture of all seven colors, which is white.  Your spinner may look grey to you because your colors are not pure.

Colors of the Rainbow  =

Richard Of York Gave Battle In Vain   =

Red, Orange, Yellow, Green, Blue, Indigo, Violet!

Kids Science Experiments & Science Projects Categories:

Absorption	Balancing & Gravity	Bending Light	Bouncing & Reflecting Light
Curious Colors	Electricity (Charging Up)	Floating & Sinking	Heat
Magnetic Attractions	Matter	Mixing & Separating	Pressure
Reaction (Getting a)	Starting & Stopping	Surface Tension	Surprising Senses
Temperature	Science Facts	Materials & Properties	Plants & Flowers