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Our Dynamic Planet
Patterns in Shadows and in the Moon
VoyageThrough the Galaxy
The Force of Gravity
The Cycle of Matter in an Ecosystem
How Plants Live and Grow
Engineering Design and Optimize
The Law of Conservation of Mass
Chemical and Physical Changes
Properties of Matter
Pure Substances
What Makes a Mixture?
Describe and Measure Matter
The Senses and the Brain Work Together
Light Allows Us to See
Energy Comes From Natural Resources
Earthquake Engineering
When Objects Collide
Energy Can Change Forms
Relating Speed and Energy
