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Hot Stuff!: Investigation #4
Learners test two jars containing soil, one covered and one open, for changes in temperature. After placing the jars in the Sun, learners discover that the covered jar cools down more slowly.

Hot Stuff!: Investigation #1
Learners test two jars, one containing plain air and one containing carbon dioxide gas, to see their reactions to temperature changes.

Hot Equator, Cold Poles
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In this activity, learners use multiple thermometers, placed at different angles, and a lamp to investigate why some places on Earth's surface are much hotter than others.

From the Internet to Outer Space
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In this activity, learners will use Google Sky to observe features of the night sky and share their observations.

A Funny Taste
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In this activity, learners explore the different salinities of various sources of water by taste-testing.

How Much Water is in that Cloud?
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In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds.

Glaciers
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In this online activity, learners adjust mountain snowfall and temperature to see how glaciers grow and shrink. They will use scientific tools to measure thickness, velocity and glacial budget.

Mineral Scavenger Hunt
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In this activity, learners participate in a scavenger hunt, searching for and recognizing minerals and products that contain minerals.

Your Age on Other Worlds
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Did you know that you would be a different age if you lived on Mars? It's true!

Sizing Up Hail
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In this activity, learners will estimate the sizes of balls to learn how to estimate the size of hail. Learners will compare their estimates to the estimates of their peers and the real measurements.

Quadraphonic Wind
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In this activity, learners discover how the extent of various wind speeds changes in each of the four quadrants around a hurricane.

A Recipe for Air
Learners use M&Ms® (or any other multi-color, equally-sized small candy or pieces) to create a pie graph that expresses the composition of air.

Space Stations: Sponge Spool Spine
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In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).

Make a Sun Clock: Tell Time with the Sun
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Before there were clocks, people used shadows to tell time. In this outdoor activity, learners will discover how to tell time using only a compass, a pencil, a handy printout, and a sunny day.

Twist and Spout
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In this activity, learners make their own "tornado" using two soda bottles and water.

Solar System Bead Distance
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In this astronomy activity, learners create a model of the solar system using beads and string.

Radar Mapping: What's in the Box?
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In this activity, learners mimic remote sensing. Learners use a stick to measure the distance to a "planet surface" they cannot see, and create their own map of the landscape.

Moonlight Serenade
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In this activity, learners act as the Earth and observe how different angles between the Sun, Earth, and Moon affect the phases of the moon we see each month.

Fast Rusting
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In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool.

Toilet Paper Solar System
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In this activity, learners build a scale model of the solar system using a roll of toilet paper.