Sound introduces the young reader to the principles of sound: how it is created, the speed of sound, musical sound, sounds in nature, and hearing. Step-by-step projects explain how to make your own panpipes, how to make a model ear, and even how to measure the speed of sound.
The Science Discovery series provides younger readers with an exiting and practical way to learn about science. Each book concentrates on two scientific topics which are explained through lively facts and activities. Realistic, high quality illustrations
From the alarm that wakes us in the mourning to the song we sing in the bath, the world around us is full of sound.'
Explain how sounds are made and the purpose they serve for both humans and other animals'
Dalam VCD ini akan dijelaskan apakah itu suara. Suara merupakan sensasi psikologi yang diterima oleh otak melalui telinga. Dan dalam video ini kita akan mempelajari bagaimana kelelawar menggunakan sejenis sonar yang dapat membantu mereka menentukan arah di dalam kegelapan.