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Learners explore water's property of cohesion through two investigations.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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Learners use red cabbage juice and pH indicator paper to test the acidity and basicity of household materials. The activity links this concept of acids and bases to acid rain and other pollutants.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners examine how brine shrimp populations can survive in some of the harshest environments.

Over $20 per group Ages 11 - 18 1 to 7 days
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In this activity (on page 1 of the PDF), learners make a "mini-globe" to investigate the causes of day and night on our planet.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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Learners use shop tools and various materials to construct a magnetic spinner and a compass.

$1 - $5 per student Ages 8 - 14 1 to 2 hours
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In this activity, learners design a flag for a chosen or assigned planet. The instructions include information about flags on Earth, and a list of flag references.

1 cent - $1 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners collect, analyze, and interpret information about objects in order to classify them into a cladogram. Use this activity to talk about how scientists classify things.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore how the hull shape impacts a ship's performance and stability.

$10 - $20 per group Ages 11 - 18 2 to 4 hours
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Somatic Cell Nuclear Transfer (SCNT) is a cloning method that involves transferring a nucleus from a somatic cell of the individual to be cloned to an enucleated egg.

1 cent - $1 per group Ages 11 - 18 1 to 2 hours
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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.

Over $20 per group Ages 8 - adult 1 to 7 days
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In this activity, learners will estimate the sizes of balls to learn how to estimate the size of hail. Learners will compare their estimates to the estimates of their peers and the real measurements.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners explore the engineering design process (EDP)—the process engineers use to solve design challenges.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this nutrition activity, learners explore food labels and consider the nutritional value of foods. Learners also explore units of measurement commonly used on food labels.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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Learners demonstrate how water can distort, refract and magnify light.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners model the gravitational fields of planets on a flexible surface.

$5 - $10 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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In this activity (on pages 13-16 of the PDF) learners investigate three mystery samples to see which one contains life. The three samples are sand, sand and yeast, and sand and antacid.

1 cent - $1 per group Ages 4 - 14 30 to 45 minutes
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In this fun, hands-on autumn activity, learners experiment to discover whether the colored substances in leaves can be separated from the leaves.

$10 - $20 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners explore how to stay fit the fun way. Learners participate in three physical activities.

free Ages 8 - 14 45 to 60 minutes