CONTENTS

3 Elements and atoms

6 When atoms join                        

7 Features of solids                                  

8 Features of liquids 

9 Features of gases

10 Crystals 

11 Acids and Bases 

ELEMENTS AND ATOMS 

It may seem that there is an endless number of materials and substances around us. Different woods, soil, metals, glass, textils rocks -the list is huge 

WHEN ATOMS JOIN 

Atoms are friendly  but it's rare for them to exist on their own. Usually they are joined to billions and trillions. To  make up objects and minerals around us. 

Features of solids

Most of the objects around us are solids they hold or retain their shape, unlike liquids and gases.