Learn about everything from how astronauts see in the dark to what the biggest dinosaur was with experts from the Natural History Museum

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Thinking Putty Tin - Rainbow Reveal by Crazy Aaron's Ornaments Learn about everything from howUncover the mystery of Rainbow Reveal Thinking Putty! This special putty features three incredible color shifting effects that reveal a rainbow of hues. Watch it transform before your eyes with the warmth of your hands and then morph again in the sunlight. But thats not allturn off the lights and see it glow with a radiant surprise. How many colors can you find? Details: Special putty with 3 incredible color shifting effects Made in United States