VIDEO / TEACHER GUIDE

Primary Level

VOLUME 15     2005/06
1	THEORIES OF DINOSAUR EXTINCTION	Sample VIDEO Print Guide
Millions of years ago, long before there were people, there were dinosaurs. There were many different kinds of dinosaurs that roamed the earth. They dominated the earth for over 165 million years during the Mesozoic Era., but then mysteriously became extinct. There are a lot of explanations as to why the dinosaurs so quickly became extinct. However, scientists from all over the world have gathered evidence that supports one particular hypothesis.
2	BLANKET OF PROTECTION _ EARTH'S ATMOSPHERE	Sample VIDEO Print Guide
Within our solar system life is known to exist on one planet, planet Earth. Why is planet Earth the only known planet able to support life? One of the reasons is our atmosphere - a blanket of air that surrounds our planet. The atmosphere is a mixture of different gases, each with its own physical properties. As the sun heats the earth's surface these atmospheric gases trap some of the solar energy keeping the planet at a warm and comfortable temperature. THis intricate but natural process is known as the greenhouse effect.
3	UNDERSTANDING THE FIRE TRIANGLE	Sample VIDEO Print Guide
Across the United States a house or building fire is estimated to occur every minute, and there are 640,000 wildfires a year. Fires are dangerous and can be deadly - an important reason to learn about fires and how to prevent them. For example, have fire alarms in your house and have an evacuation plan.
4	EXPLORING DESERT BIOMES	Sample VIDEO Print Guide
Deserts are some of the harshest environments in the world. They can be found just about anywhere water is scarce. They can be found in tropical rainforests and even in cold and snowy Antarctica.  When most people think of deserts they immediately think of scorching heat. However, it takes more than heat alone to create a desert. Each desert is unique, but all share commonalities - they are dry, windy, arid lands with little annual rainfall.
5	THE IMMUNE SYSTEM - BARRIER TO INFECTION	Sample VIDEO Print Guide
Our immune systems has a tough job keeping our bodies free of harmful microbes. We come in contact with germs and bacteria every day, and our immune system is challenged to to protect us. In this edition of SCIENCE SCREEN REPORT FOR KIDS, we will explore how our body's immune system goes to battle against germs in order to keep us healthy. Sometimes the immune system requires assistance.
6	THE POWER OF ELECTRICITY	Sample VIDEO Print Guide
Electricity has existed since the beginning of the universe. It flashes through the sky every time lightning flashes. Throughout time scientists have invented ways to create electricity. Electricity is an important part of our every day lives. We use it in just about everything we do - to light our homes, cook our food, and entertain us.
7/8	COLORFUL CREATURES OF THE SEA	Sample VIDEO Print Guide
Around four billion years ago oceans were formed. They contain some of the oldest and most successful life forms on earth. They cover nearly seventy-five percent of the earth's surface with depths greater than land's highest mountains. Flowing with salts, minerals, and dissolved gases, these waters provide the essentials for life, allowing sea life to thrive.