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Meet the Microscope
More
Light Allows Us to See
Energy Comes From Natural Resources
Earthquake Engineering
When Objects Collide
Energy Can Change Forms
Relating Speed and Energy
The California Gold Rush
Understanding Maps of Earth's Features
Understanding Maps
Erosional Processes
Fossils and Sedimentary Rocks
What are Waves?
Patterns Can Transfer Information
Survive and Thrive
Humans Cope With Natural Hazards
Climates Throughout the World
Weather Comes in Seasons
We Can Help Plants and Animals
An Animal's Traits Help it Survive
Plants and Animals Inherit Traits
