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    New York Hall of Science
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    Design and create an optical illusion toy that makes two pictures appear to become one. This is called a thaumatrope and will allow the learner to investigate the phenomenon of persistence of...

    $1 - $5 per student Ages 6 - 11 10 to 30 minutes
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    New York Hall of Science
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    This hands-on activity lets participant explore chemical reactions as they create a soda explosion with lots of bubbles. The bubbles in soda are made of carbon dioxide gas. Using lifesaver mint...

    $1 - $5 per student Ages 6 - 11 5 to 10 minutes
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    New York Hall of Science
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    This is a great activity about wave interference. Learners will create their own wave machine and discover wave properties through hands-on investigation. Topics specifically addressed include...

    $1 - $5 per group Ages 11 - 18 30 to 45 minutes
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    New York Hall of Science
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    Did you know that some breakfast cereals are fortified with ferric phosphate, while others contain tiny pieces of reduced iron? In this activity, learners will extract reduced iron from foods and...

    $1 - $5 per student Ages 8 - 14 10 to 30 minutes
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    New York Hall of Science
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    In this activity, learners investigate the reflective properties of light and mirrors as they make a kaleidoscope. Learners use simple materials to construct the kaleidoscope and then explore...

    $1 - $5 per student Ages 6 - 11 10 to 30 minutes
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    New York Hall of Science
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    Investigate the interaction of liquids of different densities and experiment with wave patterns with this hands-on activity. Using water, food coloring and oil, learners will explore the concepts...

    $1 - $5 per group Ages 6 - 11 5 to 10 minutes
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    New York Hall of Science
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    In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water. Learners create the appearance of fireworks by adding drops of red,...

    $1 - $5 per student Ages 6 - 11 5 to 10 minutes
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    New York Hall of Science
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    In this hands-on activity, learners make a bridge out of a folded piece of paper and two blocks. Then they test their structure by stacking coins (and other things) on it, discovering how much...

    $1 - $5 per student Ages 4 - 14 5 to 10 minutes
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    New York Hall of Science
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    In this quick activity, learners break the tension that happens when water develops a "skin." Learners use water, pepper and some soap to discover the wonders of surface tension—the force...

    $1 - $5 per student Ages 6 - 11 5 to 10 minutes