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Image of a fish jumping out of water.

The Beautiful Undammed

Release Date
Duration 00:27:51

After a dam removal on Washington’s Elwha River, scientists are chronicling a story of ecological rebirth. Recovering salmon populations are transferring critical nutrients from the ocean into the forests, enriching the entire ecosystem.

Energy Flow through Ecosystems

This Click & Learn traces the flow of energy from the Sun all the way to cells within organisms. The embedded questions and calculations guide students’ understanding of how energy is distributed through a variety of ecosystems.

Ecology
Science Practices
Click & Learn
High School — General
High School — AP/IB

How Can We Explain Evolutionary Relationships among Species?

In this inquiry-based activity, students engage in science practices to figure out ways environmental factors drive the natural selection and adaptation of Galápagos finches.

Evolution
Science Practices
Card Activities
High School — General
High School — AP/IB

COVID-19 Sparks Community Action

This video shows how a group of students, scientists, and volunteers came together to make hand sanitizer and masks for their community during the COVID-19 pandemic.

Microbiology
Science Practices
Scientists at Work
High School — General
High School — AP/IB
College

Biology of SARS-CoV-2

This four-part animation series explores the biology of the virus SARS-CoV-2, which has caused a global pandemic of the disease COVID-19.

Biochemistry & Molecular Biology
Microbiology
Click & Learn
High School — General
High School — AP/IB
College

Nutrient Cycling in the Serengeti

In this activity, students engage with an example from the Serengeti ecosystem to illustrate the exchange of nutrients between plants, animals, and the environment.

Microbiology
Ecology
Earth Science
Card Activities
High School — General
High School — AP/IB
College

Photosynthesis

This multipart animation series explores the process of photosynthesis and the structures that carry it out.

Biochemistry & Molecular Biology
Cell Biology
Anatomy & Physiology
Click & Learn
High School — General
High School — AP/IB
College

Testosterone Levels in Elite Athletes

This activity guides the analysis of a published scientific figure from a study that compared the testosterone levels of Olympic-level elite athletes.

Anatomy & Physiology
Science Practices
Data Points
High School — General
High School — AP/IB
College

Why Two Heads?

This activity explores images of planarians regenerating missing body parts, which serve as phenomena for learning about cell division and differentiation.

Cell Biology
Anatomy & Physiology
Phenomenal Images
High School — General
High School — AP/IB

Sex Verification Testing of Athletes

This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history.

Anatomy & Physiology
Science Practices
Click & Learn
High School — General
High School — AP/IB
College