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Making Map Projections
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In this activity about cartography, learners work in teams to create two different map projections: a planar (or polar) and a cylindrical (or Mercator) projection.
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.

Shrinking Spot
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In this activity, learners control the (apparent) size of a hole with their brain.

Condensation
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In this activity, learners explore the process of condensation.
Send Secret Messages
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In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.
Why is the Sky Blue?
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In this activity, learners create a "mini sky" in a glass of water in a dark room.

Clogged Arteries
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In this activity, learners explore how eating unhealthy food can damage a heart and arteries.

Make Your Own Sea Otter
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In this activity about sea otters, learners make their own "otter whiskers" and use them to find objects underwater.

Postcards from Space
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Using information from the My Place in Space lithograph, learners write and/or draw a postcard to friends and family as if they had gone beyond the interstellar boundary of our Solar System, into the

Playground Patterns of Cracks
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In this math activity, learners observe and sketch cracking patterns in pavement.

Making a Translation Tessellation
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In this activity, learners slide shapes to create unusual tiled patterns.

Zoomers
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In this activity, learners build their own rockets from paper, coffee stirrers, and tape. Learners discover that when anything flies, air pressure is always involved.

Make a Salt Volcano (Lava Lite)
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This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring.

Phylogenetics
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This activity lets learners participate in the process of reconstructing a phylogenetic tree and introduces them to several core bioinformatics concepts, particularly in relation to evolution.

Wear a Chimp on Your Wrist
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Learners construct a bracelet containing two strands of beads, which represents a double strand of DNA that codes for a gene. They match beads to the bases in a section of a chimp's DNA code.

Rainbow in the Room
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This activity generates learner excitement about light through the creation of a room-sized rainbow.

Exploring Symbiosis
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In this activity, learners discover which plants and animals have symbiotic relationships and how this impacts each organism.

Make Your Own Deep-Sea Vent
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In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.
Let's Go Ice Fishing
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In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.

Super Shrinkers
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In this activity on page 14 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners turn plain pieces of recycled plastic into shrunken works of art.