Harry keeps track of the number of times he sneezes in certain locations to try to diagnose the cause of his allergy in this video segment from Cyberchase.

In this video segment adapted from United Tribes Technical College, meet Native Americans who are concerned about climate change and believe that action today can help future generations once again live in harmony with Earth.

In this video segment from New York Voices, Native-Americans make a gift of a commemorative totem pole for the September 11th tragedy.

The border collies of the Lake District are featured in this video segment from Nature.

Meet an activist who works to help the struggling farmers of rural India in this video from Wide Angle.

In this video segment from Nature, learn the history of the world's first domesticated animal, the dog.

In this video segment from Wide Angle, tour a village in the rural Chinese countryside.

This video segment from Between the Lions uses a cheer--Hop 'Til You Drop--to build letter knowledge, and to demonstrate how movement and letter chanting can illustrate the words being spelled.

Aaron and Justin investigate which sunscreen best keeps out harmful ultraviolet rays from the Sun, in this video from DragonflyTV.

In this video segment adapted from Shedding Light on Science, observe demonstrations of the fundamental idea that light travels in straight lines.

In this video segment adapted from NOVA, explore the theory that small bits of gas and dust combined to form protoplanets billions of years ago, which in turn collided to create the four rocky planets of the inner solar system.

Students learn how the human body self-regulates to maintain a stable internal environment despite changes in the external environment.

Students investigate hominid evolution. They learn the difference between a relative and an ancestor, study the emergence of bipedalism, and chart patterns of hominid migration.

This video segment from The Human Spark features a discussion about how human thought differs from that of chimpanzees.

In this video segment adapted from the National Film Board of Canada, learn how the Inuit people have used their traditional knowledge to understand and adapt to changes in their Arctic environment, particularly when hunting and navigating the landscape.

Greg “Biskakone” Johnson is a member of the Lynx Clan and an enrolled member of the Lac du Flambeau Band of Lake Superior Chippewa. Learn how his passion for keeping traditional ways alive includes hunting deer and using nearly all parts of the deer for food, clothing, and tools.

This resource is part of The Ways, a collection of educational media resources for middle and high school classrooms from PBS Wisconsin Education.

Explore the full collection: https://pbswisconsineducation.org/theways/about/

Learn about the role of dogs in the culture of Papua New Guinea in this video segment from Nature.

Why might less ice on the lakes, for less time, be a problem?
Wisconsin winters are often thought of as long and cold, but for those who love ice fishing, those cold temperatures mean they’ll have the ice cover needed to fish on the lakes. As conditions change, ice cover and the ice fishing season are changing too, and people are noticing. Hear from two ice fishing enthusiasts about their experiences heading out on the lakes to fish.

This resource is part of Climate Wisconsin, a collection of educational media resources for middle and high school classrooms from PBS Wisconsin Education.

In this Wide Angle video, view a city area where illegal migrants from rural China live and work.

Point/counterpoint commentary on the president's actions after the Brown ruling; from American Experience: "Eisenhower."