أساسيات العلوم ( طبيعة الأصوات)

What energy?

How do we get energy from its different sources?

What is the source of thermal energy for our bodies?

In this book you will find answers to all these questions and more

Practical facts and experiences

Pictures and illustrative information to help you understand the results in a more in-depth manner

Summary for each topic

Contents

warmth and heat 4

Heat and power 6 degrees 8

heat transfer 10

Conductors and Insulators 12

body temperature 14

- sweat and shiver 16

Heavy clothes and feeling warm 18

How do animals maintain a body temperature of 20

Maintain house temperature 22

The use of thermos 24

Listen to what is around you. What do you hear ? Keep listening. What other sounds can you hear? The world we live in is full of sounds. But how do these sounds come out? How do you move? How do we hear it? What is the nature of the sound?

In this book, you will discover everything you need to know about conservation