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Greenhouse in a Beaker

Carbon is naturally found in the atmosphere. Carbon dioxide, or CO2, itself is not considered a pollutant. The CO2 being released from burning fossil fuels was part of the atmosphere hundreds of millions of years ago before being captured by plants and sea organisms.

Groundwater Movement

Water that accumulates beneath the surface of the Earth is called groundwater. Contrary to popular belief, groundwater does not form underground "rivers," but is actually found in the small spaces and cracks between rocks and other material such as sand and gravel. The following activity involves learning how water moves through rock materials such as sand, gravel, and clay.

Groundwater on the Move

The following activity involves learning how water moves through rock materials such as sand, gravel, and clay.

Hands-On Experiments to Test for Acid-Mine Drainage

 Click on the link below for the .pdf file of this classroom activity.

PDF icon Acid Mine Drainage

How Can You Test Your Soil?

As a citizen scientist, you can use a soil test kit to find out how much of each type of chemical is in your soil.

How Dangerous Are Tsunamis?

Imagine playing beside the ocean, when suddenly, the water drops. Where the water used to be, there are wriggling fish and ribbons of seaweed. What do you do?

How Natural Gas Forms

In this activity, you’ll make a model of how natural gas might be formed from decaying organic material.

Humans and Water, Past to Present

Humans use lots of water. We need it for various activities, including agriculture, transport, washing, and recreation. Most important, we need to drink fresh water to stay alive. Today, in many regions around the world, fresh water comes straight to where we need it. But in some places, people must carry gallons of water from the closest stream, river, lake, or well to their homes.

Hurricane Tracking

In this activity, plot data found on the National Hurricane Center website to track the path of the hurricane storms.

Identifying Your Watershed

The goal of this activity is to identify the watershed you live in, the source of water you use at home and the pathway of surface water runoff in your watershed.

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