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Soap-Film Painting
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Make a big canvas of iridescent color with pvc pipe! In this Exploratorium Science Snack, you'll need to cut and assemble some PVC pipe, but the pay-off, the soap-bubble canvas, is big.

Isolation of DNA from Onion
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This laboratory exercise is designed to show learners how DNA can easily be extracted from onion cells. It includes an optional test for the presence of DNA.

Secret Codon
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In this activity, "write" a secret message in genetic code as beads on a string.

Effect of Environment on Plant Growth
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The purpose of this plant biotechnology activity is to demonstrate the effect of changes in the environment on the growth and fertility of landscape grasses and crop grasses such as wheat and rice.

Planaria Fishing
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In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

Insect Collection
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Learners use several types of insect sampling and collection equipment to make an insect collection. Learners can collect insects from their schoolyard or yard at home.

Born of Blood: Craft Stick Chromosomes
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In this activity, learners work in groups to match craft sticks that represent chromosomes. Learners must define critical attributes of their chromosomes as they look for matching chromosomes.

Jelly Beads
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Learners add drops of alginate solution to a solution of calcium chloride. The alginate does not mix with the calcium chloride, but forms soft gel beads.

Leapin' Lizards
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In this outdoor activity, learners first explore lizard feeding behavior by creating a "lizard rig" to dangle different objects in front of live lizards and see which objects the lizards try to bite.

Dinosaur Bone Experiments
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This activity features two connected hands-on activities about dinosaur bones.

Genetics the Easy Way
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In this activity, learners make critters out of recyclables and apply the rules of mathematics to solve genetics problems.

Root Observations
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In this activity, learners will investigate and compare the root systems of plants. Explore how weed and edible plant roots differ, and take a closer look inside with the careful use of a knife!

Amphipods: More than Mud
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In this data analysis and environmental science activity, learners examine the effects of pollution on amphipods using data from the Chesapeake Ecotox Research Program.

Balloon Bugs
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In this activity, learners make balloon models of disease-causing bacteria.

Think Fast!
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This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen.

Demonstrating An Epidemic
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This experiment allows learners to experience a small scale "epidemic," demonstrating the ease with which disease organisms are spread, and enables learners to determine the originator of the "epidemi

Shake a Shrub
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This is an activity where learners will discover what types and how many insects live in their own backyard.

Sustainable Grazing
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In this activity, learners investigate the food, water, and space needs of common livestock animals.

Beach Buckets
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In this activity, learners explore a bucket of sand and beach objects.

Delivery Capsules
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Learners make self-assembled polymer spheres as a model for the lipid nanoparticles found in COVID-19 mRNA vaccines.