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    NASA
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    This interactive demonstration reintroduces learners to three states of matter (solid, liquid, gas), and introduces them to a fourth state of matter, plasma. This activity also explores the...

    Over $20 per group Ages 8 - 14 5 to 10 minutes
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    NASA
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    In this activity, learners explore how distance can affect the way we perceive the size of an object. It also introduces learners to solar eclipses as well as the Sun and Moon's sizes and...

    free Ages 4 - 18 5 to 10 minutes

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    • Oregon Museum of Science and Industry (remove)
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