Set of 6 plastic colour paddles to demonstrate how colours mix with each other. Explore and discover..
A scientifically realistic model of the human eye, enlarged 6 times. Dissectable to 6 parts, includi..
The Big IdeaView colorful, giant Jupiter, study Saturn's dazzling rings, examine the cratered surfac..
Your child will be amazed by the tricks light can play with this equilateral prism. Explore the ways..
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