Page 5 - Science Course 3 (Book 2)

TABLE OF CONTENTS

Module 8 Chemical Reactions

Changes in Matter 2
a. What are Physical and Chemical Changes? 2
b. How Do the Changes of Matter Affect Mass? 4
Signs of a Chemical Reaction 10
a. How to Recognize Chemical Reactions? 10
b. Why is Mass Conserved in a Chemical Reaction? 12

Module 9 Understanding Electricity

Electrically Charged Objects 20
a. What are Electrically Charged Objects? 20
Electric Current and Electric Circuits 27
a. What is Electric Current and an Electric Circuit? 27
b. What are the Two Types of Electric Circuits? 29

Module 10 Understanding Types of Waves

Types of Waves 36
a. What are Waves and How are They Made? 36
b. What are the Properties of Waves? 39
Light Waves 46
a. What are Light Waves and Electromagnetic Waves? 46
b. How Does Light Interacts with Matter? 49
Sound Waves 56
a. What are the Properties of Sound Waves? 56
Understanding Sound 64
a. How are Sound Waves Produced? 64
b. How Do you Hear Sounds? 67
Light Waves and Sound Waves 74
a. How are Light Waves Different From Sounds Waves? 74
b. Interaction of Light Waves with Matter 76
Ref ections, Mirrors, and Lenses 82
a. How Do Ref ections and Mirrors Work? 82
b. What are the Types of Lenses? 84
c. How Does the Human Eye Work? 87