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Size Them Up: Learning About Volume and Capacity
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In this activity, learners will put a set of containers in order by capacity. Would the tallest container hold more or less water than the wide, short one?

Cloudy Globs: Can You Make a White Gel From Two Clear Liquids?
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Using household materials, learners can make white gooey globs from clear solutions. Alum, dissolved in water, reacts with the hydroxide in ammonia to create aluminum hydroxide.

Pipeline Challenge
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In this activity, learners explore how engineers develop pipeline systems to transport oil, water, gas, and other materials over very long distances.

Tiny Geyser Models
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In this activity (located on page 2), learners will construct tiny model geysers out of film canisters, warm water, and antacid seltzer tablets.

Float Your Boat
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In this physics activity, learners will explore buoyancy.

Wheat Evolution: Dough Washing
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In this activity (Page 22 of PDF), learners investigate the evolution of wheat by washing different types of dough with water and comparing the results.

Toilet Model
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In this activity, PVC pipe, plastic water bottles and vinyl tubing are used to make a simple working toilet model. The model shows the role of a siphon in the flushing of a toilet.

Building Molecules
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This online interactive has three activities in the NanoLab (press the upper right button): Build, Zoom, and Transform.

Growing Food From Scraps
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In this activity, learners will explore vegetative propagation while preparing food scraps to grow into plants.

Invent on the Spot
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In this activity, learners design a device to solve a problem: how to get a ball out of a drain pipe.

Signs of Life
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In this activity, learners examine photo images of Earth taken from space, and attempt to identify and explain some of our planet's geological features.

Building A Storm Drain
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In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

Hydraulic Car
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In this activity, learners build cars using syringes and water-powered hydraulics. Learners construct the car frame out of cardboard and set up a hydraulic system to raise and lower the car.

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.

Air Pressure
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In this experiment, learners use a blow dryer and water bottle to observe and record changes in air pressure caused by changes in temperature.

The Shape of Floatation
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In this activity (on page 2 of the PDF under GPS: Sailboat Design Activity), learners will discover how the shape of an object, not just its weight, determines whether it floats or sinks.

Seed Dispersal
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In this outdoor activity and bingo-like game, learners explore why and how seeds spread far from the plants that produce them.
Soda Pop Can Hero Engine
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In this demonstration/activity, water streaming through holes in the bottom of a suspended soda pop can causes the can to rotate.

Liquid Body Armor
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In this activity, learners explore how nanotechnology is being used to create new types of protective fabrics.

Jem's Pykrete Challenge
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In this activity, learners make pykrete by freezing a mixture of water and a material like cotton wool, grass, hair, shredded paper, wood chips, or sawdust.