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Showing results 141 to 160 of 201

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In this activity about encryption, learners cut out a secret decoder badge from a handout and use it to encode messages to each other.

1 cent - $1 per student Ages 8 - 14 30 to 45 minutes
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In this online activity, learners crack the special code imprinted on envelopes to help the U.S. Postal Service deliver the mail.

free Ages 8 - 14 5 to 10 minutes
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In this activity, learners construct three quick and simple mechanisms to start building a pop-up book. Learners fold, cut, and glue paper to make a bird beak, parallelogram, and V-fold.

1 cent - $1 per student Ages 6 - 14 30 to 45 minutes
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Using simple, inexpensive items, learners build and test submarine models.

$10 - $20 per group Ages 11 - 18 45 to 60 minutes
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In this activity (on page 146 of the PDF), learners will explore the effects of increased carbon dioxide in the bloodstream.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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This activity offers learners and their families several ways to raise their awareness together about home water.

free Ages 4 - adult 1 to 7 days
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This activity (located on page 3 of the PDF under GPS: Balloon Fiesta Activity) is a full inquiry investigation into Bernoulli’s principle and airplane wings.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection by encouraging them to formulate questions that can be answered through scientific investi

$10 - $20 per group Ages 11 - 18 2 to 4 hours
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This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection through data collection and pattern recognition.

$5 - $10 per group Ages 11 - 18 1 to 2 hours
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Get all wrapped up in a lesson about skin!

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners create a model using metric measuring tapes and atmosphere composition data.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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This is an activity (on page 2 of the PDF under Surface Area Activity) about surface area to volume ratio.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners are introduced to tree rings by examining a cross section of a tree, also known as a “tree cookie.” They discover how tree age can be determined by studying the rings and ho

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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This activity (on page 2 of the PDF under SciGirls Activity: Malformed Frogs) is a full inquiry investigation into using indicator species to assess the health of an environment.

Over $20 per group Ages 8 - 14 1 to 2 hours
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This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this weather forecasting activity, learners determine the location of cold and warm fronts on weather plot maps.

free Ages 8 - 18 45 to 60 minutes
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In this very hands-on lesson, learners will investigate dendrochronology (the study of tree rings to answer ecological questions about the recent past) and come up with conclusions as to what possible

1 cent - $1 per group Ages 8 - 14 2 to 4 hours
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In this activity, learners explore how mirrors reflect light and change the way we see things.

$1 - $5 per group Ages 11 - 14 45 to 60 minutes
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In this online activity, learners will explore size estimation in one, two and three dimensions. Multiple levels of difficulty allow for progressive skill improvement.

free Ages 6 - adult 10 to 30 minutes
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In this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city.

1 cent - $1 per student Ages 8 - 18 30 to 45 minutes