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Trophy Triathlon
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In this activity, learners are challenged to design and construct a trophy for prize-winning sports equipment.

Jitterbug
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This activity explores the concept of center of gravity by having learners build a Jitterbug--a motorized toy that seems to dance--using a recycled CD and a DC motor.

Wax 'n Wash
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In this activity, learners create secret messages using a candle. Learners discover that watercolor paint is attracted to some materials, like paper fibers, but not others, like oil.

Bubble Bomb
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Learn about chemical reactions by making a Bubble Bomb, a plastic bag you can pop with the power of fizz.

Ins and Outs of Respiration: Determine your Respiratory Rate
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Learners will determine their respiratory rate and explore the factors that affect breathing rate by filling out and using the Respiratory Chart provided in the lesson.

Animal Reflection Response
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In this activity (page 1 of the PDF under SciGirls Activity: Horse Ears), learners observe how an animal responds to its own reflection.

Sweat Spot
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In this activity, learners use a chemical reaction to visualize where moisture forms on the body.

Endangered!
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While playing a game, learners discover how the Endangered Species Act works in the United States. Learners move along a game board by answering questions correctly.

Exploring Structures: Butterfly
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In this activity, learners investigate how some butterfly wings get their color.

Magnetic Suction
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In this activity about electricity and magnetism, learners discover how a doorbell works. A coil of wire with current flowing through it forms an electromagnet that acts similar to a bar magnet.

How the Mushroom Got Its Spots
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In this activity (p.26 of PDF), learners discover why mushrooms have spots. Learners use a balloon, toilet paper, and water to simulate what happens as mushrooms grow.

Exploring Science Practices: Early Explorations
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This activity gives caregivers and their children an opportunity to practice scientific ways of thinking that are developmentally appropriate for early learners.

Dissolving a Substance in Different Liquids
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In this activity, learners make colored sugar and add it to water, alcohol, and oil to discover some interesting differences in dissolving.

Candy Chemistry
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In this experiment, learners test multiple food items to see if they are an acid or base using an indicator solution created with red cabbage.

Marshmallow Constellations
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In this activity, learn about the cultural stories behind constellations. Then recreate your favorite constellations using marshmallows and toothpicks.

Unlocking the Secret in Product Codes
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In this activity, learners will explore how product barcodes are scanned accurately and be able to "guess" the last number in a 13 digit barcode correctly every time.

Dancing Cereal
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In this quick activity (on page 2 of the PDF under GPS: Body Electricity Activity), learners will observe how dry breakfast cereal appears to dance when it gets close to a balloon charged with static

Exploring the Solar System: Hide and Seek Moon
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"Exploring the Solar System: Hide and Seek Moon" is an engaging way for early childhood learners to experiment with some of the tools scientists use to study objects that are very, very far away, and

Ancient Sun Observations
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In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.

Turbidity
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This is an activity about turbidity, or the amount of sediment suspended in water.