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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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
Study Jams! Aquatic Ecosystems
Mia's friends are fish-sitting while she is away on vacation. Zoe divulges to Sam that different animals need different habitats, and that there are both freshwater and saltwater ecosystems. Examples of the kinds of organisms found in...
5th - 9th Science CCSS: Adaptable
LS2C - Ecosystem Dynamics, Functioning and Resilience
How do ecosystems react to change over time? Show your class how natural and man-made factors affect the organisms in an area using the guidelines in a video about standard LS2C. Topics include biotic and abiotic factors, biodiversity,...
7 mins 3rd - 12th Science
LS2A - Interdependent Relationships in Ecosystems
Everybody needs somebody... especially in nature! Show your young ecologists the finer points of NGSS standard LS2A, Interdependent Relationships in Ecosystems, using the helpful ideas in the video. The narrator discusses the...
8 mins K - 12th Science
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
What is Chirality and How Did it Get in My Molecules?
Flashy animation, superb narrative, and a touch of bad-hair-day humor explain the nature of chiral molecules in this five-minute feature. Viewers find out how chemist Jacobus Van't Hoff proposed that some saturated carbon molecules are...
5 mins 9th - 12th Science