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Shrinkers
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Visitors use heat to shrink samples of polystyrene. They compare samples from containers that were shaped in different ways during manufacturing.

Digger
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In this activity, learners build their own construction cranes using tongue depressors and pushpins.

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.
Concentrate: Concentrations and Reaction Rates
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Visitors incrementally increase the amount of iodate in three different test tubes containing the same amount of a starch solution.

Molecular Menagerie
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In this activity, learners use molecular model kits to construct familiar molecules like lactose, caffeine, and Aspirin.

Read With Your Fingers
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In this activity, learners work in partners to create and exchange messages written in Braille. Learners use a Braille key and thumbtacks to write their messages in Braille.

The Jelly Bean Problem (JBP)
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In this activity, learners are challenged to eat some candy as a cell would need to as well as to think about some of the problems that arise when a cell ingests food.
Narrow it Down: Numbers
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In this activity, learners will ask yes-no questions to identify a secret number (similar to Twenty Questions). Combine logic and numbers in this game for all ages.

Find the Best Way to Clean Oil off Bird Feathers
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In this experiment, learners examine the way oil affects bird feathers and test different cleanup methods to find out which works best.

Puzzled Partners
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In this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece.

Handy Measuring Ratio
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In this activity, learners use their hands as tools for indirect measurement.
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.

Conservation Island
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In this lesson, learners will understand the concepts behind endangered and extinct animals and develop their own conservation plan to save three endangered species.

Engineering Ups and Downs
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In this activity, learners explore the engineering and principles behind working elevators.
Energy Audit
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In this lesson, learners will practice graphing and statistically analyzing data.

Sum of Your Parts
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A group of 6 learners works together as a team with each learner performing a different role. Together, they need to maneuver a die through a maze.

Speedy Shelter
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In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.

Penny Battery
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In this activity, learners light an LED with five cents. Learners use two different metals and some sour, salty water to create a cheap battery.

Let's Make Music
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In this activity, learners will create their own percussion instrument with recycled materials. Learners will explore design, fabrication, cause and effect and sound through this activity.

Popsicle Bridge
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In this activity, learners explore how engineering has impacted the development of bridges over time, including innovative designs and the challenge of creating bridges that become landmarks for a cit