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Water Treatment
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Water treatment on a large scale enables the supply of clean drinking water to communities.

Habitat Web
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In this activity, learners explore the web of connections among living and non-living things.

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.

Homework, Hogwarts Style
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In this activity on page 8 of the PDF (Behind the Scenes with Chemistry), learners make three of Harry Potter's essential school supplies: quills, ink, and color-changing paper.

Creating a Local Field Guide
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In this activity, learners survey living organisms near where they live or go to school, and create a local field guide.

Make Your Own Soda Pop
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In this chemistry activity (page 8 of the PDF), learners will identify the instances of physical change, chemical change, and solutions while making homemade soda pop.

Soak It Up: Understanding Amphibian Permeability
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In this activity, learners will discover how the thin layers of amphibians' skin allow water and other chemicals to pass through it.

Leaf Living
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In this outdoor fall activity, learners find out what living in or under a layer of leaves is like.

Can Fishing
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In this outdoor activity, learners go "can fishing" and discover the kinds of aquatic organisms that live in and on submerged cans.

Cellular Soap Opera
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In this activity, learners create a large film of soap and experiment with what can and cannot pass through it.

Design a Flower
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In this activity, learners learn about the adaptations that flowers have developed which support pollination. Learners also list their personal preferences (i.e.

Using Bubbles to Explore Membranes
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In this activity, learners use bubbles to investigate the structure and unique properties of cell membranes. Bubbles serve as macroscopic models that mimic the cells' phospholipid bilayers.

Exploring Size: StretchAbility
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In this game, learners explore the different sizes of things in the world. In this Twister-like game, learners must place a hand or foot on a circle of the right scale - macro, micro, or nano.

Exploring Structures: DNA
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In this activity, learners create a necklace of wheat germ DNA. Learners add alcohol to wheat germ so that the DNA clumps together.

Mushroom Murder Mystery
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In this game (p.28 of PDF), learners discover different fungal lifestyles and the various roles that fungi play in nature. Learners play the roles of fungi and must find their corresponding trees.

Clear Water, Murky Water
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How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

Draw a Monarch Butterfly: Scientific Illustration
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Ivy Rutzky, a scientific assistant at the American Museum of Natural History, introduces an activity where learners create a scientific illustration of a monarch butterfly.
Press Seaweed
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In this activity, learners will collect, dry and press seaweed over the course of four days in a similar way that artists/crafters press flowers.