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This resource contains several mini-explorations using a slide projector as a light source to investigate light and the properties of images.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners participate in a simulated dig to discover fossilized dinosaur bones. Learners take notes, make a map and propose theories about dinosaurs.

Over $20 per group Ages 8 - 11 1 to 2 hours
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In this activity, learners use an astrolabe to measure the altitude of objects. Learners will first practice taking measurements by measuring the altitude of trees and buildings.

$1 - $5 per student Ages 6 - 14 1 to 4 weeks
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In this yummy activity about soil (page 9 of PDF), learners will create layers of soil using food. They will learn about the composition and role of each layer.

$1 - $5 per student Ages 8 - 11 30 to 45 minutes
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Learners design their own experiment to determine which M&M color dissolves the fastest in water.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners construct a cereal chain as a model of how proteins are made in the cell.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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In this meteorological activity, learners get to build their very own anemometer (instrument for measuring wind speed) using a paper cup.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this physical activity, groups of learners act as blood cells traveling through the circulatory system.

$1 - $5 per group Ages 8 - 11 30 to 45 minutes
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This is a hands-on activity exploring how nanoscale particles are used in mineral sunblocks to increase their transparency.

$10 - $20 per group Ages 6 - adult 10 to 30 minutes
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In this twist on a classic design challenge, learners will try to stop a bouncy ball from bouncing as they explore how to control the fall of an object.

$1 - $5 per student Ages 6 - 18 30 to 45 minutes
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In this activity, learners play a card game that explores the relative sizes of various objects. Learners compete to organize their hand of cards into lists of objects from largest to smallest.

1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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In this activity, learners explore the relationship between cooling water vapor and condensation. Learners investigate condensation forming on the outside of a cold cup.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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This laboratory exercise is designed to show learners how DNA can easily be extracted from wheat germ using simple materials.

$10 - $20 per group Ages 11 - 18 45 to 60 minutes
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An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.

$10 - $20 per group Ages 8 - 18 1 to 4 weeks
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In this activity, learners write invisible messages on goldenrod paper, and make the message appear and disappear using acids and bases.

1 cent - $1 per student Ages 6 - 14 30 to 45 minutes
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In this activity, learners explore how genetic switches function and the role of genetic switches in the process of evolution.

per group Ages 14 - adult 1 to 2 hours
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In this sensory activity, young learners explore chemical reactions by making their own play dough from home.

$1 - $5 per group Ages 4 - 11 10 to 30 minutes
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In this data activity, learners will explore shipwrecks from four National Marine Sanctuaries on the West Coast of the United States.

free Ages 14 - adult 1 to 2 hours
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In this hands-on activity, learners will construct a scuba diver that can float in order to explore how sea creatures stay neutrally buoyant in the ocean and to see what kinds of forces might be influ

$5 - $10 per group Ages 11 - 14 30 to 45 minutes
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In this activity, learners are challenged to build a bird feeder using recycled materials from home and are encouraged to problem solve during the extensions.

$5 - $10 per student Ages 6 - adult 30 to 45 minutes