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    In this activity (page 6 of the PDF), learners will observe both a chemical and a physical change. By experimenting with plaster of paris, students will differentiate between these types of changes...

    Over $20 per group Ages 8 - 18 4 to 24 hours
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    In this earth science activity (page 14 of the PDF), learners use layers of closed-cell foam to create their own model of the mid-ocean ridge in order to simulate seafloor spreading. Although this...

    Over $20 per group Ages 14 - 18 45 to 60 minutes
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    In this life science activity (page 8 of the PDF), learners explore the carbon cycle by mixing yeast, sugar and water. Learners observe how different quantities of the mixture produce more or less...

    Over $20 per group Ages 8 - 14 1 to 2 hours
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    In this environmental science activity (page 3 of the PDF), leaners will identify and explain the causes of erosion. They will observe the effects of erosion on the surrounding area and further...

    Over $20 per group Ages 8 - 11 1 to 7 days
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    In this activity, learners design a bicycle helmet. Participants will explore the design of bicycle helmets to gain an appreciation for the role that helmet layers play protecting the head. They...

    Over $20 per group Ages 11 - 18 45 to 60 minutes
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    In this geology and engineering activity (page 7 of the PDF), learners build an earthquake simulator, then use it to test various building designs, exploring different materials, shapes, and design...

    Over $20 per group Ages 14 - 18 1 to 2 hours
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    In this chemistry activity (page 3 of the PDF), learners will observe a chemical change, specifically what happens to iodine when it is applied to ripe and unripe apples. From the reaction of...

    Over $20 per group Ages 8 - 14 10 to 30 minutes
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    In this chemistry activity (page 5 of the PDF), learners make an acid-base indicator using cabbage. Learners then explore how various subtances react with this indicator. Though this activity was...

    Over $20 per group Ages 8 - 18 30 to 45 minutes

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