Organic Materials in an Aquatic Ecosystem
Students evaluate the relationship between oxygen levels and the amount of organic matter in an aquatic ecosystem. They explain the relationship between oxygen levels, bacteria and the breakdown of organic matter using an indicator solution.
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New Review Ecosystem Interdependence: Managing Salmon for Healthy Forests
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...
6th - 12th Science CCSS: Designed
Rain Forest Teaching Curriculum
Take young naturalists on an exploration of the world's tropical rainforests with this extensive collection of lessons and activities. Whether its creating leaf and flower prints or investigating the absorption spectrum of chlorophyl,...
K - 12th Science CCSS: Adaptable
What's Hidden Among the Tallest Trees on Earth?
Hidden hundreds of feet above the ground in the redwoods of Northern California is a whole world that was just waiting to be discovered. This video tells the story of Stephen Sillett who, inspired by his grandmother, set out to explore...
5 mins 6th - 12th Science CCSS: Adaptable