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That's the Way the Ball Bounces: Level 2
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In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, volume, density, and bounce height.

What is Energy?
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In this exploratory activity, learners experiment, observe and determine how various toys change from one form of energy to another.

Modeling Tidal Action
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In this activity (Lesson 1), learners work in groups to create tide simulations.

Match Rock
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In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

3D-ection: Molecular Shape Recognition
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In this activity (page 12), learners explore how molecules self-assemble and how molecules must fit together, like a lock and key, in order to identify each other and initiate a new function as a comb

Population Game
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In this outdoor game, learners simulate a herd of deer trying to survive in an area called the "home range." Learners explore the concept of "carrying capacity"—what size population of an organism can

Disappearing Crystals
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Learners experiment with water gel crystals, or sodium polyacrylate crystals, which absorb hundreds of times their weight in water. When in pure water, the water gel crystals cannot be seen.

The China Hammer Mystery
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In this activity, learners are asked to examine the differences between two materials in a pair.

Ramp it Up
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In this activity, learners will build ramps and test how the laws of physics apply do different objects. Learners will explore physics and cause and effect through this activity.

Can Energy be Created or Destroyed?
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In this activity, learners explore conservation of energy by experimenting with a solar cell light device.

Personal Pinhole Theater
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

Paper Proteins
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In this activity, learners use an origami template to design eight amino acids. Learners configure the amino acids to form a protein. Use this activity to introduce proteins and amino acids.

Tomb Mapping
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In this activity, learners examine the culture and history of the tomb site.

Observing Different Microbes
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In this activity, learners use a microscope to examine three different microbes: bacteria, yeast and paramecia. Educator will need to prepare the yeast solution one day before the activity.

Curious Contraptions
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In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.

Counting Your Lucky Stars
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In this activity, learners sample a star field to estimate the number of stars in the universe.

Looking Back Through Time
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In this activity, learners create their own archaeological profiles.

Sound Automata
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In this activity, learners build their own sound machines and explore the interplay of motion and sound.

Breathing Yeasties
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Does yeast breathe? Find out by watching how plastic bags filled with yeast, warm water and different amounts of sugar change over time.

Invent a Plant
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In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.