Bill Nye is retiring his kid show act in a bid to become more like his late professor, astronomer Carl Sagan. Sagan dreamed of launching a spacecraft that could revolutionize interplanetary exploration. Bill sets out to accomplish Sagan's mission, but he is pulled away when he is challenged by evolution and climate change contrarians to defend the scientific consensus. Can Bill show the world why science matters in a culture increasingly indifferent to evidence?

Digestion: Bill Nye explains how the body's digestive system is like a fine-tuned machine that turns food into energy. Bill demonstrates the process with a steam engine that runs on corn flakes. Respiration: Bill Nye gets aerobic about the importance of respiration as he jogs, bikes, swims, and scuba dives. Discover how to measure the amount of air each breath contains and see a demonstration of how cigarette smoke can infiltrate and injure the lungs.

Bill Nye the Science Guy is charged up and ready to show kids how to be Safety Smart around electricity. Learn the shocking truth about conductors and insulators and why electricity can be dangerous if you become part of the circuit.

Bill Nye the Science Guy ignites learning as he shows students how to be Safety Smart around fire. By explaining the science of fire, including the roles heat, fuel and oxygen play, Bill demonstrates how knowledge and awareness provide the opportunities to learn and practice safe behaviors. Public Performance Rights. Spanish language track. Exclusive educational bonus features and assessment tools to reinforce key lessons.

Bill Nye the Science Guy explains the science behind DeflateGate and whether or not Tom Brady's footballs could have naturally deflated during the game. You won't believe what he has to say.

Believe it or not, we're using energy faster than we can produce it. Bill Nye explores the science of renewable energy and demonstrates how we can use science and technology to engineer a brighter tomorrow. Using his trademark blend of hands-on demos and humor, Bill explains Newton's First Law. Then, he's off to the Renewable Energy Lab at UL to compare renewable and non-renewable energy sources such as fossil fuels, solar, wind, and hydroelectricity. Scientists are working every day to develop new forms of renewable energy sources that are safe, efficient, and friendly to the planet. Energy sources that might one day eliminate our reliance on fossil fuels - now that's Safety Smart!

Instill a heads-up attitude all year long with this new DVD featuring two of our most popular safety classics. Who better to get kids interested in bike safety basics than the way cool science guy? Younger children will delight in learning about safety procedures and the appropriate equipment to use when skateboarding, bicycling, and roller-skating from the beloved Pinocchio. Students will learn why it's important to always wear an approved safety helmet, stay visible to drivers, remain alert and aware of your surroundings, and most importantly to follow the rules of the road.