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

In this video from Wide Angle, learn about the farmers of Vidarbha in central India who have seen a loss in profits due to the high cost of borrowing money and the low prices for their crops in a globalized market.

Students are asked to explain how clouds participate in the water cycle. [0:32]

This video segment from Outdoor Nevada looks at the Gila monster's behavior, habitat, and unique adaptive characteristics. [3:55]

Protecting their farms from elephants is a daily fight for African farmers in the Sahel. In this video segment from Africa, learn about the relationship between the African farmers and elephants in the Sahel.

This video from Wide Angle reports on the increasingly difficult conditions for farmers in China that have caused many rural Chinese to flee the countryside.

In this video segment from The Secret of Life school video, "Sex and the Single Gene" follow as a single fertilized egg cell divides, differentiates, and assembles into the tissues and organs of a new organism. [1:20]

In the early 1600s, most people believed that the Sun revolved around a stationary Earth. This video segment adapted from NOVA tells how Galileo proved that the Sun, not Earth, is at the center of our universe.

In this video segment from Nature, learn about cats. Consider the possibility that the cat may become the number one choice for pet owners.

This ZOOMSci video segment shows how to create self-contained environments and explore how plants grow under different conditions. [3:24]

This video segment from Interactive NOVA: "Earth" looks at photosynthesis, the chemical process plants use to make their own food.

This collection of six images captures the magnificence of human development -- the transformation from baby to woman.

This interactive feature describes some of the most important structures and functions of the cell membrane.

This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.

This interactive timeline from the AMERICAN EXPERIENCE Web site features influential technological innovations from 1750 to 1990.

In this video segment from Nature, animal lovers talk about their experiences having pigs as pets. In addition to the video, the site offers teaching tips as well as a transcript of the video and a connection to state standards.

Students are asked to explain how a tornado is formed and what a tornado does.

Poverty shows children in unclean conditions and asks your student to write a description of what they think life is like for these children.

This video segment from Wide Angle describes the communist Workers' Party of Korea, the ruling party of North Korea.

In this Cyberchase video segment, the CyberSquad uses fractions and percents to compare the contest results of the Squitters, little creatures who love to jump.

In this video segment from Cyberchase, Inez, Jackie and Digit use multiplication to keep track of the number of clones.

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.

Wicked and Digit must solve a fraction problem in order to free the CyberSquad in this video from Cyberchase.

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