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    In this physics activity, learners will investigate the strength of egg shells. They will attempt to stack books on top of inverted half egg shells to see how many they can hold, and the results...

    1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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    In this activity, learners explore why frost forms. They create their own frost using a solution of ice water and salt in a glass. The salt allows the temperature of the water to drop below the...

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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    In this engineering activity, learners test the stability of towers they build out of cups, discovering that structures with more mass in the base are more stable.

    1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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    This is an online game about the complexities of farming. Learners will "draw" cards and make decisions about how to take care of their farm. Through this process, they will learn farming...

    free Ages 8 - 18 5 to 10 minutes
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    In this physics activity (page 2 of the PDF), learners will explore the concept of thermal conductivity and learn the differences between high and low thermal conductivity. This activity must be...

    $5 - $10 per group Ages 6 - 11 10 to 30 minutes
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    In this environmental science activity (page 4 of the PDF), learners use vinegar and chalk to observe the effect of acid rain on various building materials and plant life. Learners will explore how...

    $1 - $5 per group Ages 6 - 14 4 to 24 hours
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    In this physics activity, learners will build their own parachutes out of tissue paper. They will explore the effects of weight, height, and design on the parachutes' speed and stability. This...

    $1 - $5 per student Ages 8 - 11 30 to 45 minutes
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    In this physics activity (page 2 of the PDF), learners will construct their own walkalong glider. They will explore how air, though invisible, surrounds and affects other objects. Learners will...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    In this environmental activity (page 16 of the PDF), learners will calculate the amount of energy they save by recycling paper, plastic, glass, and aluminum materials over the span of a week. This...

    free Ages 8 - 14 1 to 4 weeks
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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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