Filter It Down

Drinking clean water can be taken for granted. Explore the process and high cost of filtering water with a water pollution and filtration activity. Young scientist build a filtration system to filter polluted water, examine the economics...

Water, water, everywhere, but not a drop to drink—until we clean it, of course! Scholars design a filtration device that removes pollutants from water. The goal is to have the water come out as clean as possible from the device. How...

As an example of nature's water filtering system, young ecologists conduct an experiment in the lab. They construct a funnel out of a plastic bottle, fill it with specified layers of materials that simulate layers of soil, then run muddy...

Examine the impact the fishing industry has on local ecosystems. The hands-on lesson begins with an experiment that tests the effectiveness of fish-based fertilizers. It continues with a computer-based module that simulates sustainable...

In this environmental science lesson, learners write a short story about what it's like to help at an oyster garden. They formulate 2 hypotheses on the disappearance of oysters in Chesapeake Bay.

Someone stole a diamond-making machine. Who done it? Scholars use forensic science at six different stations to determine the culprit. They analyze fingerprints, use their senses, and complete chemistry experiments to determine the...

Help your class understand the design challenges when trying to land a remote spacecraft on a planet. Class members examine the provided information to understand how each component of a spacecraft is designed in order to safely land a...

After showing they quick-paced featurette on the breaking of bonds, hold a discussion using the accompanying Think questions. Complex molecules are broken down into smaller molecules during digestion. There are six main molecules that...

Students explore water treatment systems. In this water conservation ecology lesson, students identify and explain several processes used for water treatment and define related vocabulary after listening to content information given...

Young scholars study pictures of tropical rainforests and discuss its stratified character. Students then work with a partner to make a scale drawing of the rainforest strata.