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A Funny Taste
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In this activity, learners explore the different salinities of various sources of water by taste-testing.
The Power of Words
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This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure.
Salt 'n Lighter
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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.
Diet Light
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In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.
Cartesian Diver
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In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.
Amazing Marshmallows
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In this demonstration, learners observe the effects of air pressure. They will watch as marshmallows inside a bottle expand as a vacuum pump removes air from the bottle.
Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.
It's a Gas, Man
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In this activity, learners discover if carbon dioxide has an effect on temperature.
Crunch Time
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In this quick and easy activity and/or demonstration, learners use two empty 2-liter bottles and hot tap water to illustrate the effect of heat on pressure.
Finding the Right Crater
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This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.
Earth's Water: A Drop in Your Cup
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This creative lesson plan provides a visual way for learners to gain knowledge about the finite amount of fresh water on Earth and encourages the discussion of the various ways to conserve this resour
Morning Star and Evening Star
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This demonstration activity models how Venus appears from Earth.
Pocket Solar System: Make a Scale Model
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This fun and simple hands-on astronomy activity lets learners build a scale model of the universe with little more than adding machine tape.
Toasty Wind
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In this quick activity, learners use a toaster to investigate the source for the Earth's wind. Learners hold a pinwheel above a toaster to discover that rising heat causes wind.
Why Does the Moon Have Phases?
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In this activity, learners use a simple 3D model to discover why the Moon has phases.
Aerogel
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This activity/demo introduces learners to aerogel, a glass nanofoam. Learners discover how aerogel is made and how well it insulates as well as learn about aerogel's other unique properties.
Standing in the Shadow of Earth
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This fun and simple hands-on astronomy activity demonstrates the shadow of the Earth as it rises as a dark blue shadow above the eastern horizon.
Cook Up a Comet
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In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.
A Pressing Engagement
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In this quick and easy activity and/or demonstration, learners illustrate the effect of the weight of air over our heads.
Make Your Own Pendulum
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In this demonstration about force and motion, learners will explore the forces that affect a pendulum A simple model pendulum comprised of a ball and string demonstrates how pendulums work as well as