Lower Secondary Science Matters Textbook Volume B (2nd Edition)

• Helps students relate to scientific concepts using real-life context.
• Engages students through visuals - Information is communicated clearly and concisely in this manner. In addition, fascinating pictures are used to create excitement among students and make learning more enjoyable.
• Encourages critical thinking and challenges students to think about concepts at a broader level as well as understand the ethical issues surrounding science and technology.

CONTENTS

1 Transport Systems in Organisms

1.1 The Need for a Transport System

1.2 Transport System in Plants

1.3 Transport System in Humans

2 Human Digestive System

2.1 Why is the Digestive System Important?

2.2 The Human Digestive System

2.3 Digestive Enzymes

3 Human Sexual Reproductive System

3.1 Human Sexual Reproductive System

3.2 Sexual Reproduction

3.3 Premarital Sex and Abortion

3.4 Birth Control Methods

4 Electrical Systems

4.1 Flow of Electricity

4.2 Effects of an Electric Current

4.3 Household Electricity

5 Interactions Through the Application of Forces

5.1 Types of Forces

5.2 Measuring Force

5.3 Effects of Force

5.4 What is Pressure?

6 Energy and Work Done

6.1 Energy and Work Done

6.2 Energy Changes

6.3 Sources of Energy

7 Transfer of Sound Energy Through Vibrations

7.1 What Causes Sound?

7.2 How We Hear Sound

7.3 How Does Sound Vary?

7.4 Sound and Society

8 Effects of Heat and Its Transmission

8.1 Expansion and Contraction of Matter

8.2 Effects of Expansion and Contraction

8.3 Movement of Heat

9 Chemical Changes

9.1 Chemical Changes as a Result of Interactions

9.2 Types of Chemical Changes

9.3 Types of Chemical Changes - Interactions between Matter

9.4 Movement of Atoms during Chemical Reactions

9.5 Effects of Chemical Changes - Friends of Foes?

10 Interactions Within Ecosystems

10.1 Ecosystems

10.2 Energy Flow in an Ecosystem

10.3 Decomposers

10.4 Conserving the Environment