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    The Exploratorium
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    How can you make one shade of gray look like two? By putting it against two different color backgrounds! This activity allows learners to perform this sleight of hand very easily. They will be...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    University of Washington
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    In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments. In "CLASS EXPERIMENT," learners find that the ability to tell...

    $5 - $10 per group Ages 8 - 18 1 to 2 hours
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    University of Utah
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    In this simulation of synapses, learners act out communication at the neural level by behaving as pre-synaptic vesicles, neurotransmitters, post-synaptic receptors, secondary messengers and re...

    1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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    BioEd
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    In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity. Use this activity to explain how the nervous system sends messages as...

    $10 - $20 per group Ages 11 - 14 45 to 60 minutes
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    Optical Society of America
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    In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it. Learners use a shoebox, a glass of water, and colored plastic to make essentially a model...

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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    University of Washington
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    In this activity, learners create a model of a neuron by using colored clay or play dough. Learners use diagrams to build the model and then label the parts on a piece of paper. This resource guide...

    1 cent - $1 per student Ages 8 - 18 10 to 30 minutes