Acids and Bases: Testing Rocket Cars

In this ZOOM video segment, cast members make bottle rocket cars using lemon juice and baking soda, and experiment with different ways of launching the cars.

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Beyond Einstein

NASA scientists describe some of the ways current science is addressing several of Einstein's fundamental questions and theories in this video adapted from NASA.

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Center of Gravity: Pencil Balance

Watch the ZOOM cast learn about center of gravity by trying to balance a pencil on their fingers and noses.

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Defy Gravity! Centripetal Force

How can you keep a ball from falling out of a jar if the jar is upside down? Watch the ZOOM cast use centripetal force to meet this challenge.

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Defy Gravity! Upside Down Ping Pong Ball

In this video segment, the ZOOM cast is challenged to keep a ping pong ball in a funnel while the funnel is held upside down, seemingly defying gravity.

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The Deployable Energy Absorber

Watch how engineers stage a crash to test a new helicopter safety design technology in this video from NASA.

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Experimenting with a Pendulum

In this video segment, members of the ZOOM cast experiment with a pendulum and discover what they need to do to make the pendulum complete one back-and-forth swing in five seconds.

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Force and Motion

This video segment from IdahoPTV's D4K explains and gives examples of Sir Isaac Newton's 3 Laws of Motion using the rides at an amusement part.

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Galileo on the Moon

Watch Apollo 15 astronaut David Scott perform Galileo's falling objects experiment on the Moon in this video segment from NASA.

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Galileo's Big Mistake

Scientists don't always get it right. This video segment adapted from NOVA looks at Galileo's failed theory for the motion of the tides.

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Glory: The Rough Road to Space

This video adapted from NASA describes the various factors engineers must consider when designing a spacecraft that can withstand the extreme conditions in space.

Gravity

This video segment from IdahoPTV's D4K demonstrates how gravity, mass, matter, and weight are related and how astronauts can overcome earth's gravity to fly to space.

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Gravity at Earth's Center

In this video segment from NOVA scienceNOW, learn about the effects of gravity as astrophysicist Neil deGrasse Tyson falls through a virtual hole through Earth's center.

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Growing Plants in Space

Learn about the challenges and benefits of growing plants in space from plant biologist Dr. Ray Wheeler in this video from NASA.

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Hoover Dam

This video segment from Building Big: "Dams," demonstrates the basic principals at work in the Hoover Dam, a concrete gravity dam that also makes use of the properties of the arch.

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How Do You Get to the Moon?

This video, adapted from NOVA, showcases the competing engineering plans designed for landing a person on the Moon for the first time.

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How Would You Turn a Bolt in Space?

In this fast-paced NASA Brain Bites™ video, an astronaut demonstrates the impact of microgravity on the use of tools in space.

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Invisible Force Challenge

In this video from Design Squad Nation, kids design and build systems that use magnets to control the speed and direction of a rolling ball. They also learn how NASA uses gravity to direct a spacecraft.

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Mass vs. Weight: Accelerating Mass

Astronauts on the International Space Station demonstrate Newton’s Second Law of Motion in this video from NASA's Teaching From Space initiative.

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Mass vs. Weight: Air Powered Mass

In this video from NASA's Teaching From Space initiative, astronauts on board the International Space Station conduct an experiment using an air gun to exert a consistent force on two difference masses -- an empty water bag and a full water bag.