DVD

Despite its wonders, Earth's water cycle does not spread water evenly around the planet. The Ogallala Aquifer’s huge underground reservoir of water gives the relatively dry Central Plains states such as Nebraska a large but limited irrigation source. But the aquifer's water is being used up faster than it is beng replenished.

The Rio Grande is one of our longest rivers, its Texas section forming the border between the U.S and Mexico. Competing human claims for it are viewed through the eyes of two young women: a whitewater rafting guide in upstream New Mexico and a teenager downstream near El Paso.

Drinking polluted water can cause many deadly diseases, especially in children of poor countries around the world. We see the crystal-clear water in a flowing Peruvian rainforest river but are amazed to learn that it is unsafe, due to runoff entering the great connected network of tributaries that flow into the Amazon, the world’s largest source of fresh water.

Polluted waters can have damaging economic and social effects as well as destroy wildlife habitats. Chesapeake Bay is one of the most polluted bodies of water in America, but local students are working with commercial crab catchers and scientists in the Baltimore area to help restore its health.

The fair distribution of water has long been a worldwide problem, and it is one that the United States may increasingly experience in the future. The Great Lakes contain 20% of the world’s fresh surface water, but that water is currently available to only a small portion of the U.S population.

From the stunning creators of Blue Planet: Seas of Life comes this epic 5-disc series celebrating the Earth as never before. With an unprecedented production budget, using high definition photography and revolutionary high-speed cameras.

The program demonstrates the following constructions in the context of a student creating a mobile to hang above a baby's cot: * Bisecting an angle * Perpendicular bisector of a line * Constructing a triangle using three known side lengths * Determine the center of gravity by constructing medians * Determine the inscribed circle of a triangle by constructing the angle bisectors * Determine the

This entertaining and informative program explains all about exponents, the powers to which numbers are raised. Examining positive and negative indices, the uses and benefits of using exponents to express very small and very large numbers, and how to calculate approximations this is a program that will empower all math students with clear and accurate explanations.

Integers are all around us and used for many different purposes. This program explores the world of integers where we share a day in the life of the presenter who entertains us in her own quirky way, taking us to a snooker hall, then to a shopping mall and finally the basketball court, demonstrating how integers permeate many aspects of everyday life.

Another winner in the Mathemania brand, this is a clear and concise explanation of algebraic notation. In this program we start with an introduction to algebraic notation, then examine algebraic definitions and mathematical models, bringing it all together with the road test - creating a mathematical story.

Contains footage of the wreckage of two famous ships describing the skills and techniques used in underwater forensics.

Dramatizes Leo Buscaglia's parable of living and dying, telling the story of Freddie, a leaf that enjoys its life on a strong tree in the park, but becomes fearful when it is time to let go

When procrastinators Jack and Skye are suddenly thrown from Trevor's sketchpad into the Amazon jungle, they begin to see their assignments in a whole new light. Laugh along with Jack and Skye's hilarious adventure as they learn good homework skills such as making a homework schedule, finding a homework helper, eating healthy snacks, doing the hardest homework first, and more!

Using humor, original music and a fast-paced storyline, Trevor Romain offers kids practical, easy-to-implement solutions for dealing with their own bully problems such as work on building your confidence, staying calm, giving bullies lots of space, telling an adult and more!