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Water Sphere Lens
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In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.

Seeing Your Retina
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In this quick optics activity, learners use a dim point of light (a disassembled Mini MagLite and dowel set-up) to cast a shadow of the blood supply in their retina onto the retina itself.

Cover Your Mouth
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In this health activity (page 3 of the PDF), learners will discover why covering their mouth and nose while sneezing is so important.

Natural Buffers
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Learners use a universal indicator to test the amount of sodium hydroxide needed to change the pH of plain water compared with the amount needed to change the pH of gelatin.

Wetlands
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Learners create a model of a wetland to observe how it absorbs and filters water from the environment.

As Straight as a Pole
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In this engineering activity (page 3 of PDF), young learners investigate how a pole can be made stable by “planting” its base in the ground or adding supports to the base.

Inside DNA
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In this activity (on pages 34-39), learners make a fairly detailed model of DNA using licorice and gumdrops.

Dinosaur Sock Puppet
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In this activity about dinosaurs, learners first participate in a group discussion about where and when dinosaurs lived, how big they were, and who studies them and how.

Decibel Cannon
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In this activity, learners will construct an air cannon as a model for the human ear.

Kitchen Jamboree
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In this activity, learners observe, explore and investigate vibrating instruments in everyday places and create music in unique ways.

Sensory Hi-Lo Hunt
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In this outdoor activity, learners use only their senses to to find the extremes of several environmental variables or physical factors: wind, temperature, light, slope and moisture.

Space Stations: Follow the Bouncing Ball!
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In this activity, learners predict whether a ball on Earth or a ball on the Moon bounces higher when dropped and why.

Oil Spill Cleanup
This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

Rainbow Film
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In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.

Beachcombing
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In this outdoor activity, learners become beachcombers as they walk on a sandy beach in search of evidence of life.

Bonseki Salt Art
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In this activity learners will be creating art using a traditional Japanese art style.

Space Stations: Measure Up!
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In this activity, learners work in pairs to measure each other's ankles with lengths of string.

Exponential Models: Rhinos and M&M’s ®
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In this math lesson, learners model exponential decay and exponential growth using M&M's, paper folding, and African rhino population data.

Fingerprint Identification
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In this activity (on page 2) about fingerprint analysis, learners use graphite from a pencil and scotch tape to capture their fingerprints.

Free-living and Plant-Parasitic Nematodes (Roundworms)
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This lesson introduces learners to the world of nematodes (roundworms).