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Pepper Scatter
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In this activity, learners explore the forces at work in water. Learners experiment to find out what happens to pepper in water when they touch it with bar soap and liquid detergent.

Secret Message
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In this activity, learners explore acid and bases as they create their own invisible ink out of baking soda and grape juice.

Rooftop Gardens
How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer.

Make Your Own Compass
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In this physics activity (page 8 of the PDF), learners will make their very own working compass.

Red, White and Blue I Demonstration
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In this chemistry demonstration, learners observe a chemical reaction that produces a colorful effect.

Thirsty Candle
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In this activity, learners will explore the dynamics of air pressure by using a candle, a cup, and a dish of water.

What Counts in Bounce
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In this activity learners compare the bounciness of warm and cold racquetballs to see if temperature makes a difference in how well they bounce.

Crystal Gardens
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In this activity, which requires adult supervision, learners get to explore the awesome power of chemistry.

Short Circuit
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In this activity about electricity, learners explore what happens when you blow a fuse.

Change in Temperature: Endothermic Reaction
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Learners investigate signs of a chemical reaction when they mix vinegar and baking soda. In addition to a gas being produced, learners also notice the temperature decreases.

Wash Away Germs
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Many germs spread by our hands, and often times, people don't wash their hands well enough to get rid of germs.

Exploring the Solar System: Asteroid Mining
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In this activity, learners will imagine the challenges and opportunities of asteroid mining.

Achieving Orbit
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In this Engineering Design Challenge activity, learners will use balloons to investigate how a multi-stage rocket, like that used in the Interstellar Boundary Explorer (IBEX) mission, can propel a sat

Up Periscope!
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This activity provides instructions for building a mirrored tube--a smaller and simpler version of a submarine's periscope--that lets you see around corners and over walls.

Motor Effect
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In this activity about electricity and magnetism, learners examine what happens when a magnet exerts a force on a current-carrying wire.

Cell Division
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This activity was designed for blind learners, but all types of learners can use it to investigate how, in a one-celled organism such as a bacterium, the division of cells increases the number of cell

Digging Into the Past
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This activity (on pages 23-27) lets learners simulate the work of scientists who take core samples of Earth's rocky layers to determine geological history.

Coding Algorithms
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In this activity, learners will code an algorithm to make it through a maze.

Learning the Land
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In this activity, learners will take a step back and learn the history of the land they live on, and the people who used to live on it.