Physical Science For Children All About Sound

Sound, like light, travels in waves. Young students learn about the amazing journey of sound -- from the source that creates the sound to the mechanics of the ear that enable it to be heard. Children discover why sound needs a 'medium' to travel, why there is no sound in space and how certain animals are able to 'see' by using sound! A fun, hands-on activity and clearly illustrated diagrams help students learn these basic concepts. One of 11 volumes in the Physical Science for Children DVD Series in the Schlessinger Science Library. Part of the Schlessinger Science Library for Children Collection. This title correlates to the National Science Education Standards for Physical Science -- properties of objects & materials, position & motion of objects and light, heat, electricity & magnetism. A Teacher's Guide is included and available online.

In All About Magnets, kids explore what makes something "magnetic" and learn that while magnets come in many different shapes and sizes, they all have two things in common -- a north and south pole. They discover that opposites attract and likes repel, and how this concept is used to propel the unique "Bullet Train,"which is able to move at high speeds without touching the train tracks! The program also explains magnetic fields and introduces electromagnets __ dramatically demonstrated by a scrapyard crane lifting tons of metal high in the air. Also included is a fun activity that illustrates how kids can use a magnet to remove iron from fortified breakfast cereals. This program is based on the concepts outlined in the National Science Education Standards for Physical Science.

All About Simple Machines introduces kids to the concepts of forces, work and how machines are used to make work easier. Six simple machines are presented using fun, real-life demonstrations and clear, colorful graphics: the lever, the wheel and axle, the pulley, the inclined plane, the screw and the wedge. Learn more about these simple wonders, and see how they are the basis for most of the world's tools and machines. Includes a fun, hands-on activity that lets kids test these ideas themselves by using an ordinary see-saw. This program is based on the concepts outlined in the National Science Education Standards for Physical Science.