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Learners observe a sealed test tube containing a small amount of solid stearic acid.

$5 - $10 per group Ages 11 - 18 5 to 10 minutes
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Learners observe a bottle containing water and oil. They are invited to pick up the bottle and mix the contents together.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.

$1 - $5 per group Ages 11 - adult 30 to 45 minutes
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Learners observe and compare the sizes of three toy “growing” crocodiles made from water-absorbent polymers. One is it its original state, dry, hard, and about 10cm long.

$5 - $10 per group Ages 6 - adult 1 to 7 days
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This is written as a static display, but can easily become a hands-on experiment for learners.

$5 - $10 per group Ages 14 - adult 30 to 45 minutes
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Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

$1 - $5 per group Ages 4 - 14 10 to 30 minutes
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This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids.

$5 - $10 per group Ages 4 - 14 5 to 10 minutes
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Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.

Over $20 per student Ages 11 - adult 5 to 10 minutes
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Learners observe different paper samples under ordinary room light and under a black light to learn some of the chemical differences between different types of paper.

Over $20 per group Ages 6 - adult 10 to 30 minutes