Contents

254 4 3
                                        

CONTENTS

CHAPTER 1: THE WORLD THROUGH OUR SENSES
1.1 Sensory Organs and Their Functions
1.2 The Sense of Touch
1.3 The Sense of Smell
1.4 The Sense of Taste
1.5 The Sense of Hearing
1.6 The Sense of Sight
1.7 Light and Sight
1.8 Sound and Hearing
1.9 Stimuli and Responses in Plants

CHAPTER 2: NUTRITION
2.1 Classes of Food
2.2 The Importance of a Balanced Diet
2.3 Human Digestive System
2.4 Absorption of Digested Food
2.5 Reabsorption of Water and Defecation
2.6 Healthy Eating Habits

CHAPTER 3: BIODIVERSITY
3.1 Diversity of Living Organisms
3.2 Classification of Living Organisms
3.3 The Importance of Biodiversity to the Environment

CHAPTER 4: INTERDEPENDENCE AMONG LIVING ORGANISMS AND THE ENVIRONMENT
4.1 Interdependence among Living Organisms
4.2 Interaction between Living Organisms
4.3 Food Webs
4.4 Photosynthesis
4.5 Conservation and Preservation of Organisms
4.6 Role of Human Beings in Maintaining the Balance of Nature

CHAPTER 5: WATER AND SOLUTION
5.1 Physical Characteristics of Water
5.2 Composition of Water
5.3 Evaporation of Water
5.4 Solution and Solubility
5.5 Acid and Alkali
5.6 Water Purification
5.7 Water Supply System
5.8 Preservation of Water Quality

CHAPTER 6: AIR PRESSURE
6.1 Air Pressure
6.2 Application of the Principle of Air Pressure

CHAPTER 7: DYNAMICS
7.1 Force
7.2 Measurement of Force
7.3 Application of Frictional Force
7.4 Application of Work
7.5 Application of Power
7.6 Importance of Force in Life

CHAPTER 8: SUPPORT AND MOVEMENT
8.1 Support Systems in Animals
8.2 Support Systems in Plants
8.3 Appreciating the Support System in Living Organisms

CHAPTER 9: STABILITY
9.1 Stability
9.2 Importance of Stability

CHAPTER 10: SIMPLE MACHINES
10.1 Levers
10.2 Appreciating the Innovative Efforts in the Design of Machines to Simplify
Work

Learn Science [Form 2]Where stories live. Discover now