Page 6 - Science Course 3 (Book 2)

TABLE OF CONTENTS

Module 11 Understanding Earth’s Past

Fossils 94
a. What are Fossils? 94
b. Fossils: What is in the Ancient Environment? 96
Relative-Age Dating 103
a. What is Relative-Age Dating? 103
b. How to Determine the Relative Ages of Rocks? 105
Absolute-Age Dating 112
a. What is Absolute-Age Dating 112
b. How to Determine Absolute Ages? 115
The Geological Time Scale 121
a. How was the Geologic Time Scale Developed? 121
b. What Causes Mass Extinction? 122
The Paleozoic Era 128
a. Major Events During the Paleozoic Era 128
b. Fossil Evidence About Paleozoic Era 130
The Mesozoic Era 136
a. Major Events During the Mesozoic Era 136
b. Fossil Evidence About Mesozoic Era 137
The Cenozoic Era 143
a. Major Events During the Cenozoic Era 143

Module 12 The Sun-Earth-Moon System

The Movement of the Sun, Earth, and Moon 152
a. What Causes Seasons on Earth? 152
b. How Does the Moon Affect Earth? 155
The Movement of the Earth 161
a. How Does the Earth Move? 161
b. Why Do the Seasons Change? 163
The Movement of the Moon 170
a. How Does the Moon Move? 170
b. What are the Different Phases of the Moon? 172
Solar and Lunar Eclipse 177
a. What is a Solar Eclipse? 177
b. : What is a Lunar Eclipse? 179