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Convection
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In this activity, learners model atmospheric convection currents using food coloring, water, and clear cups. Activity includes step-by-step instructions, STEM connections, and more.
Making Rivers
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In this outdoor water activity, learners explore how to change the direction of water flow. Learners make puddles in dirt or use existing puddles and sticks to make water flow.

Basking Basics
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In this activity, learners will explore reptile biology by taking temperature readings in various places and comparing them.

Slippery Coqui Eggs
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In this activity, multiple learners will use a game with ballloons to learn about coqui frog behavior.

Pollinator Bath
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In this activity, learners will build a design and build a place for pollinators to drink from.

Soil Density
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In this activity, learners will test soil content using their sample, some water and a container that seals.

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!

Discovery Time: Wildflowers
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In this activity, young learners (2 years and up) explore flower and plant biology and pollination by planting seed in a homemade seed starter.

Discovery Time: Dirt
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In this activity, young learners (2 years and up) explore dirt and what is in it by painting with mud.

Discovery Time: Turtles
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In this activity, young learners (2 years and up) explore turtle basic adaptations and biology. Turtle external anatomy is explored by "building" a turtle with a nature collage.

Balls and Ramps
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In this activity, learners use simple, everyday materials to experiment with balls and ramps.

Build A Bee Bath
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In this activity, learners use found natural materials to create a water haven for bees and other insects.

Discovery Time: Birds
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In this activity, young learners, (2 years and up) explore bird behavior and adaptations by providing a homemade bird feeder and observing birds.

Discovery Time: Tracks
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In this activity, young learners, (2 years and up) explore animal behavior and adaptations by providing a "track trap" and observing the signs animals leave behind.
Magnus Glider
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A design challenge that takes paper airplanes into an entirely different direction: a magnus glider uses cups and and rubber bands to create a glider that uses the same forces that a curveball (from b

Observing Insects at Night
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In this activity, learners set up a night time insect observation station with a light and sheet.

Make Pooter
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In this activity, learners will explore engineering to construct an insect collecting tool (insect aspirator). The pooter uses suction to safely collect smaller insects that nets miss or may injure.

Make a Snake String & Snake Survey
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In this activity, learners will construct a measuring device (snake "string") to improve their observation skills.

COSI's Bubble Recipe
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Everybody loves bubbles, and this is the best bubble recipe ever!

Bug Hotel
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In this activity, learners will create a home for animal friends in their backyard using recycled materials. Some material suggestions include: pine straw and twigs.