The Earth beneath Your Feet
Before You Read
Hiking Up Old Rag Mountain
Section 1: Weathering and Erosion
Section 2: Earth's Plates
Reading a Newspaper Article
Earthquake Strikes Barn, Iran
After You Read
Glossary
Our Changing Planet
Before You Read
Rafting through Marble Canyon
Section 1: What Are Weathering and Erosion?.
Section 2: Plate Movement
Reading a Newspaper Article
Mount St. Helens Erupts
After You Read
Glossary
Earth's Changing-Surface
Before You Read
Standing on a Fault
Section 1: Earth's Shifting Plates
Reading a Newspaper Article
Geographo Lessons Pay Off
during Tsunami
Section 2: Rocks, Weathering, and Erosion.
After You Read
Glossary
It's Shocking!
Before You Read
Benjamin Franklin's Kite
Section l: Moving Charges
Using a Web Site
Why Are Atoms Important?
Section 2: Conductors and Insulators
Section 3: Electricity Makes Things Work.
After You Read
Glossary
Power lt Up!
Before You Read
On the Right Track
Section 1: Static Electricity
Section 2: Current Electricity
Using a Web Site
Electricity Travels In Circuits
After You Read
Glossary
What Is Electricitg?
Before You Read
A Bright Idea
Section 1: Electrical Charges
Section 2: Current Electricity
Section 3: Magnets and Electricity
Using a Web Site
How Magnets Behave
After You Read
Glossary
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