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CONTENTS

FOREWORD iii

A NOTE FOR STUDENTS vii

C H A P T E R 1

FOOD: WHERE DOES IT COME FROM? 1

C H A P T E R 2

COMPONENTS OF FOOD 8

C H A P T E R 3

FIBRE TO FABRIC 18

C H A P T E R 4

SORTING MATERIALS INTO GROUPS 26

C H A P T E R 5

SEPARATION OF SUBSTANCES 35

C H A P T E R 6

CHANGES AROUND US 46

C H A P T E R 7

GETTING TO KNOW PLANTS 52

C H A P T E R 8

BODY MOVEMENTS 66

C H A P T E R 9

THE LIVING ORGANISMS AND THEIR SURROUNDINGS 79

C H A P T E R 10

MOTION AND MEASUREMENT OF DISTANCES 95

C H A P T E R 11

LIGHT, SHADOWS AND REFLECTIONS 107

C H A P T E R 12

ELECTRICITY AND CIRCUITS 116

C H A P T E R 13

FUN WITH MAGNETS 125

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C H A P T E R 14

WATER 136

C H A P T E R 15

AIR AROUND US 147

C H A P T E R 16

GARBAGE IN, GARBAGE OUT 155