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This lesson plan revolves around studying the speciation of the Galápagos mockingbirds, which are on display at the California Academy of Sciences.

free Ages 11 - 18 1 to 2 hours
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In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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Learners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles.

$5 - $10 per group Ages 11 - 14 45 to 60 minutes
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In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore clouds and how they form.

$1 - $5 per group Ages 8 - 18 5 to 10 minutes
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In this activity, learners test the rate of ripening fruit and vegetables and use a chemical to inhibit the ripening process.

$10 - $20 per group Ages 8 - 14 1 to 2 hours
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This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly.

1 cent - $1 per group Ages 8 - 18 Under 5 minutes
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In this outdoor activity, learners use artificial bees and paper models of flowers to find out how bees transfer pollen from one flower to another.

$10 - $20 per group Ages 8 - 14 45 to 60 minutes
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Learners use a variety of beans to represent a variety of species, and scatter these beans over a large piece of paper representing the environment.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity (page 2 of PDF under GPS: Garbology Activity), learners will prepare sheets of homemade recycled paper from several different source pulps.

$10 - $20 per group Ages 8 - 14 1 to 7 days
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In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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By making models of light waves with paper, learners can understand why different colors appear in bubbles.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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In this optics activity, learners use paint thinner to make a small jar seem to disappear inside a larger jar.

1 cent - $1 per student Ages 8 - 14 Under 5 minutes
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In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

$5 - $10 per group Ages 4 - adult 30 to 45 minutes
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In this activity, learners build a figure that moves and "comes to life" when they pull its string.

$1 - $5 per student Ages 6 - 14 1 to 2 hours
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Este Web site contiene links a 12 calendarios (12 meses). Cada mes contiene actividades sobre matemáticas.

1 cent - $1 per group Ages 4 - 14 1 to 2 hours
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In this nutrition and estimation activity (page 12 of PDF), learners estimate serving sizes of different foods and compare their estimates to serving size information provided on nutrition food labels

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.

1 cent - $1 per group Ages 4 - 14 Under 5 minutes
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In this activity, learners explore how air warms when it condenses water vapor or makes clouds.

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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In this environmental activity (page 16 of the PDF), learners will calculate the amount of energy they save by recycling paper, plastic, glass, and aluminum materials over the span of a week.

free Ages 8 - 14 1 to 4 weeks