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    American Chemical Society
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    Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles. This way, learners can alter the amount of...

    $1 - $5 per group Ages 8 - 14 30 to 45 minutes
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    Science Museum of Minnesota
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    Using pipe cleaners, straws, and beads, learners explore the building blocks of life by creating their own model of DNA. This activity provides a great introduction to learning about the structure...

    $1 - $5 per student Ages 8 - 18 10 to 30 minutes
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    American Society for Microbiology
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    Learners recreate the digestion process that takes place within their large intestines. They mash up bananas into mush, then place it in an Erlenmeyer flask covered with a balloon. Learners observe...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    Children's Museum of Indianapolis
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    In this activity, learners explore the Great Plains. They use a large outline map (see related activity "If I Lived in a Forest") to trace the location of the Plains region and examine...

    $1 - $5 per group Ages 4 - 11 30 to 45 minutes
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    Astronomical Society of the Pacific
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    This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution. They will learn that observing instruments, whether telescopes...

    $1 - $5 per group Ages 4 - adult 10 to 30 minutes
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    COSI
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    In this chemistry activity (page 1 of the PDF), learners will observe a physical change. By making their own sugar or salt crystals, learners will identify physical changes and see how they can be...

    $1 - $5 per student Ages 6 - 14 1 to 4 weeks
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    COSI
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    In this health activity (page 3 of the PDF), learners will discover why covering their mouth and nose while sneezing is so important. Using talcum powder, learners will see firsthand how easy it is...

    $1 - $5 per group Ages 4 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    In this activity (on page 2 of the PDF), the learner places a golf ball between salt water and colored fresh water. The golf ball is not as dense as the saltwater. Therefore, the ball floats on top...

    $1 - $5 per student Ages 6 - 14 5 to 10 minutes
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    The University of Texas McDonald Observatory
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    In this activity, learners observe colors in the flame of a burning candle to explore connections between matter, light, color and temperature -- basic concepts of matter and energy. Then, learners...

    $1 - $5 per group Ages 14 - 18 45 to 60 minutes
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    Twin Cities Public Television
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    This activity (on page 2 of the PDF) is a full inquiry-based challenge related to motion and design optimization. Groups of learners will use construction paper to build a model bobsled run for a...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours

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