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    American Chemical Society
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    In this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases. Learners create colorful rainbow trout artwork using universal...

    $10 - $20 per student Ages 6 - 11 10 to 30 minutes
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    Make
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    In this activity, learners create a sealed, mini ecosystem that supplies freshwater shrimp with food, oxygen, and waste processing for at least three months. Learners will collect water, amphipods,...

    Over $20 per student Ages 8 - 18 1 to 12 months
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    The Exploratorium
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    The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead. Natron is made up primarily of sodium carbonate (a very efficient, but...

    $5 - $10 per group Ages 8 - 18 1 to 4 weeks
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    Lawrence Hall of Science
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    In this activity, learners observe live fish in tanks to consider how their body structures are related to their behaviors and habitats. The activity is written for use in an aquarium, but it can...

    $5 - $10 per group Ages 4 - adult 10 to 30 minutes
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    Lawrence Hall of Science
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    In this activity, learners cut out and assemble wheels to explore how variations in fish body structures (mouth shape/position/teeth, body shape, tail shape, and coloration patterns) allow fish to...

    1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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    University of Nebraska State Museum
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    This marine biology activity (on pages 11-17) introduces learners to kelp (seaweed) forests that grow in the ocean and are home to many species of sea animals. Learners construct a forest make of...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    American Chemical Society
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    In this activity on page 7 of the PDF, learners investigate the solubility of gas in water at different temperatures. This experiment will help learners determine if temperature affects solubility....

    $1 - $5 per student Ages 8 - 14 45 to 60 minutes
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    Lawrence Hall of Science
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    In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones...

    $5 - $10 per group Ages 8 - 18
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    Lawrence Hall of Science
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    In this activity and/or field trip, learners investigate the water currents that aquatic animals create when they breathe, feed, and propel themselves through water. Learners trace the currents in...

    $10 - $20 per group Ages 8 - 18 30 to 45 minutes
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    Lawrence Hall of Science
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    In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats. Learners take various samples from the pond, identify organisms using a pond...

    $10 - $20 per group Ages 6 - 14 45 to 60 minutes

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