Do you know how many calories are in a macadamia nut? This video segment highlighting a Calorimetry experiment will give you the answer.

In this video segment from Cyberchase, the CyberSquad and Digit construct a physical profile of the person who kidnapped Choocroca, a giant cybercrocodile.

This video-enhanced lesson will challenge students to design and conduct scientifically valid experiments to evaluate hypotheses regarding an animal's expected behavior in response to changes in its environment. (Grades 9-12)

Learn about the Chandra X-Ray Observatory's telescope system, science instruments, and spacecraft system in this interactive activity adapted from NASA.

In this video segment from Cyberchase, the CyberSquad must locate a crystal with the highest fraction of orange color.

Learn about cloud formations over the Sierra Nevada Mountains in this video from Nature.

This video segment from Nature shows the destructiveness of the shark fin and shark cartilage industries.

This video from NASA describes the detailed computer modeling used to predict that colliding neutron stars can produce gamma-ray bursts similar to those associated with black holes.

The CyberSquad proves that the area of Hacker's land is equal to the area of Judge Trudy's land in this video segment from Cyberchase.

In this video from Cyberchase, Harry must score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans.

In this video segment you’ll discover how using concentric circles can help you determine how much paint is needed to cover the deck of a carousel.

In this Cyberchase video segment, Matt uses subtraction to help Digit figure out how much time he has left in a cooking contest with Hacker.

This video from NASA features the Cosmic Origin Spectrograph (COS), which allows scientists to use spectrographic analysis to assess the composition of intergalactic material.

In this video segment from Cyberchase, the CyberSquad must get into a vault before Hacker, Buzz and Delete by cracking a code of shapes and numbers.

In this video segment from Nature, learn the geological process by which the next Hawaiian island will be formed.

In this Cyberchase video segment, Shari Spotter gets help from the CyberSquad in doubling a recipe for crumpets.

In this video segment from Cyberchase, the CyberSquad designs an invention that will help them cross a swamp and also reach the top of a tall cliff.

This video from Nature offers a description of desirable traits in beef and dairy cattle.

In this video segment from Nature, scientists question how animals mysteriously survive natural disasters.

Students practice data collection by gathering data within the classroom on common causes of allergies. They examine and interpret data charts on national trends in allergies.