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Prehistoric Climate Change
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In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.

Erosion
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In this activity, learners model erosion using a clear shoebox and sand or soil.

The Great Plankton Race
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In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.
How Does Water Climb a Tree?
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In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

Extreme Lifestyles
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In this matching game, learners study the limits of life on Earth to see what other places in the solar system might sustain microbial life.

Animal Scent
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This activity (on page 3 of the PDF under GPS: Animal Scent Activity) is a full inquiry investigation into animal behavior.

Collect Invertebrates to Determine Water Quality
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This activity (located on page 3 of the PDF under GPS: Alligator Habitat Activity) is a full inquiry investigation into organisms and the health of their ecosystems.

Fuel for Living Things
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In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon dioxide.

Lilliputian Landscaping
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In this activity, learners examine the different materials gardeners add to their soil, and discuss how these materials are important for plant growth.

Describing Oak Leaves
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Learners work in teams to investigate how scientists use physical characteristics to classify living things.

Stargazing
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In this nighttime, outdoor activity, learners keep a record of what they see in the sky by drawing constellations, the Moon, and making note of the weather and conditions each day.

Updrafts in Action
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In this weather activity/demonstration, learners watch as a ping pong ball is suspended in a stream of air supplied by a hair dryer.

We all Scream for Ice Cream
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In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.
What Does Life Need to Live?
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In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).
Building a Community From the Ground Up
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In this activity, a group of learners work collaboratively to design and construct a paper model showing the evolution of an environment through multiple stages, from prehistory through the modern cit
Hazardous Chemicals in Your Neighborhood
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In this environmental science lesson, learners will examine hazardous chemicals and their effects on human health and the environment.

It's the "Rain," Man
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In this weather forecasting activity, learners use common materials to construct a rain gauge and measure daily, monthly, and yearly rainfall.

The Carbon Cycle: How It Works
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In this game, learners walk through an imaginary Carbon Cycle and explore the ways in which carbon is stored in reservoirs and the processes that transport the carbon atom from one location to another

What's the Angle?
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This activity helps learners understand how the angle of the Sun affects temperatures around the globe.

That Sinking Feeling
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In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.