DVD

Why does a magnet stick to metal objects but not plastic? How can it pick up metal shavings but not wood chips? With the help of a magician, students learn all about magnetism. They discover what a magnet is, the properties of magnets, magnetic fields, and the types of objects that are attracted to magnets. Children learn what magnets are used for and in which simple machines they are found.

Roll, slide, bounce, and spin. Discover many different ways objects can move. Give your students a preliminary lesson in physical science with this fun program designed to get children thinking about pushes and pulls. Students enjoy learning about position, movement, and the forces used to make objects move.

Through instrument, voice, and graphics, students easily discover how sounds are produced and students learn how we hear. Vibration is demonstrated, and children experiment with the way sound travels—in the air, through the ground, and under water. Teacher's Guide available in disk and online: www.schoolvideos.com

When a group of children attempt to move their play fort, they realize that six simple machines make the work much easier by changing either force or distance. They learn to identify real-world examples of simple machines including the lever, pulley, wedge, wheel and axle, inclined plane, and screw.