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The Solid Truth about Matter
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The Solid Truth about Matter

Mark Weakland

DO-4U the Robot Experiences Forces and Motion
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DO-4U the Robot Experiences Forces and Motion

Mark Weakland

Onion Juice Poop and Other Surprising Sources of Alternative Energy
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Onion Juice Poop and Other Surprising Sources of Alternative Energy

Mark Weakland

Gears Go Wheels Roll
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Gears Go Wheels Roll

Mark Weakland

Captain Kidd's Crew Experiments with Sinking and Floating
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Captain Kidd's Crew Experiments with Sinking and Floating

Mark Weakland

Zombies and Forces and Motion
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Zombies and Forces and Motion

Mark Weakland

Seeds Go Seeds Grow
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Seeds Go Seeds Grow

Mark Weakland

Magnets Push Magnets Pull
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Magnets Push Magnets Pull

Mark Weakland

Gut Bugs Dust Mites and Other Microorganisms You Can't Live Without
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Gut Bugs Dust Mites and Other Microorganisms You Can't Live Without

Mark Weakland

Bubbles Float Bubbles Pop
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Bubbles Float Bubbles Pop

Mark Weakland