Join Tarissa and Sabrina as they measure and compare the volume of different sounds across New York City in this video from DragonflyTV.

In this video segment adapted from Interactive NOVA, astronaut John Young experiences extreme temperatures on the Moon that are a result of the Moon's low gravity and lack of atmosphere.

In this lesson designed to enhance literacy skills, students explore brain injuries called concussions: what they are, how they occur, the challenges in diagnosing them, and ways to protect yourself from them.

The CyberSquad tests which broom can travel the furthest in five seconds in this video from Cyberchase.

In this video segment adapted from NOVA scienceNOW, scientists in western Greenland explain how a glacier there is shrinking and moving faster due to increased melting.

The CyberSquad solves the problem of giving equal parts of two apples to Cerberus, the three headed dog of Greek mythology, in this video from Cyberchase.

In this video from Nature, watch how ravensŰ__Ű__ŒŒÇ smarts can be observed in many situations, such as when they hunt and store food.

This video describes the role of the brain in regulating body temperature and how sometimes fever is employed to fight off infection.

This video segment from the teacher video series Learning That Works uses a case study to highlight the effectiveness of a project-based, real-world approach to teaching science.

In this video segment from Cyberchase, through addition and regrouping in base sixty, Matt helps Digit figure out what time his CyberSoufflŰ__ŒŰÖ will be done.

The CyberSquad reviews their budget for the second day of their film shoot in this video from Cyberchase.

In this video segment from Cyberchase, the CyberSquad compares their budget with their actual spending from day three of their film shoot.

In this Cyberchase video segment, the CyberSquad figures out how to incorporate a new scene into their film while staying within their budget.

Students explore the concept of the mean as they examine and compare scores for various sports events.

This Evolution video segment depicts the landmark hominid fossil finds by Don Johanson and his team in Ethiopia.

In this Cyberchase video, Inez and Digit identify the location of the transformation using their knowledge of parallel and intersecting lines.

In this video segment from Cyberchase, Harry has a fixed budget for clothing, so he must figure out what combination of jackets and pants he can buy with $100.

The CyberSquad has to find a crystal that is between 65% and 85% orange to power up their escape from Hacker in this video from Cyberchase.

This video segment adapted from NOVA explains how the sprinkler revolutionized fire safety and also features developments in fire-safety design for high-rise buildings.

In this video segment from Cyberchase, Harry decides to train as a firefighter and uses line graphs to chart his physical fitness progress.