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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.

Exploring A Hydrogel
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In this activity on page 10 of the PDF, learners develop an experiment to answer the following question: "How much water can the hydrogel in a baby diaper hold?" Use this activity to explore polymers,

Exploring Fabrication: Gummy Capsules
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In this activity, learners make self-assembled polymer spheres.

Seeing Is Believing
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This activity is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Learners look through two cups with small holes in them to simulate what it'

Artificial Intelligence: The Intelligent Piece of Paper
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This activity explores what it means for a computer to be intelligent and introduces the topic of what a computer program is and how everything computers do simply involves following instructions writ
History of Siege Weapons
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In this activity (page 10 of the PDF) learners will explore the historical progression of siege weapons to gain an understanding of how the addition and modification of parts can change the efficiency

Size Wheel
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In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA).

Causes and Effects of Melting Ice
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In this activity, learners explore the concept of density-driven currents (thermohaline circulation) and how these currents are affected by climate change.

Maritime Munchies
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In this activity, learners follow simple historical maritime recipes to cook up hardtack and swanky, and then compare the foods they eat to what was served on ships in the past.

Cleaning Water with Dirt
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In this activity on page 7 of the PDF (Water in Our World), learners make their own water treatment systems for cleaning water.

Fill 'er Up!
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Learners discover that their breath contains carbon dioxide, one of the pollutants found in car exhaust.

Recycling Rules: Understanding Recycling and a MRF
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In this activity, learners simulate the separation techniques that materials recovery facilities (MRFs) use and then design their own series of recycling techniques.

Sand, Plants and Pants
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In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties.

Egyptian Measuring
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In this activity, learners compare the ancient Egyptian system of measurement, which was based on body lengths, to the customary and metric systems used today.

Monitoring Amphibians
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In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.

Recycling Paper
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In this crafty chemistry activity (on page 2 of the PDF), learners make their own paper from used paper they may have otherwise thrown away.
MarsBound!: Mission to the Red Planet
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MarsBound! is an engineering simulation activity in which learners use realistic techniques to plan a mission to Mars.

Water Treatment
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Water treatment on a large scale enables the supply of clean drinking water to communities.
Water Motor
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In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.

Exploring Materials: Graphene
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In this activity on page 4 of the PDF, explore the unique molecular structure and conductive nature of graphene. Learners construct a circuit with a battery and LED bulb.