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.
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.
The following activity involves learning how water moves through rock materials such as sand, gravel, and clay.
An Earth Science Week Houston classroom activity.
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.
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?
All living things depend on soil to live. But how much soil is there?
In this activity, you’ll make a model of how natural gas might be formed from decaying organic material.
In this activity, plot data found on the National Hurricane Center website to track the path of the hurricane storms.