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Bill Nye the Science Guy

Space Exploration (#312)

This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye teaches us space exploration. [26 minutes] Closed Captioning

This episode has not aired in the past few months on Iowa Public Television.

PBS Video

Series Description: Bill Nye knows how to provide easy access to hard science. What's his secret? A fast-paced approach blending humor and hands-on activities. Bill encourages kids to ask interesting questions...then shows them how to discover fascinating answers. Enlist the Science Guy's help when it comes to teaching a range of subjects such as Health, Math, Nature, and Environmental issues.

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  • Electricity (#102)

    In this episode, Bill Nye explained how birds, kites, and airplanes fly, and talked about lift, air pressure, dynamic pressure, and Bernoulli's Principle. [27 minutes]

  • Flight (#103)

    In this episode, Bill Nye explained how birds, kites, and airplanes fly, and talked about lift, air pressure, dynamic pressure, and Bernoulli's Principle. [27 minutes]

  • Dinosaurs (#104)

    Television host Robin Leach and actor John Ratzenberger made guest appearances in this episode to help Bill Nye explain dinosaurs: when they lived; how they are studied; and how and when they died. [27 minutes]

  • Digestion (#105)

    In this episode, Bill Nye explained how the body digests food, using an engine, a donut, and many tubes. [27 minutes]

  • Structures (#106)

    From the fictional "Nye Labs" -- where there's always something bubbling in a beaker -- to far above the earth, Bill Nye takes science out of the classroom, then adds adventure and his own inimitable zaniness to prove just how integral science is to everyday life. Working alongside a diverse cast of children, science experts and celebrity guests, Nye introduces and explores each program's main topic using studio demonstrations and experiments. The demonstrations use inexpensive, safe household items to enable viewers to follow along at home or in the classroom. [27 minutes]

  • Simple Machines (#107)

    In this episode, Bill Nye used cranes, bicycles, and sailboats to discuss simple machines, including levers, ropes, and pulleys. [27 minutes]

  • Sound (#108)

    From the fictional "Nye Labs" -- where there's always something bubbling in a beaker -- to far above the earth, Bill Nye takes science out of the classroom, then adds adventure and his own inimitable zaniness to prove just how integral science is to everyday life. Working alongside a diverse cast of children, science experts and celebrity guests, Nye introduces and explores each program's main topic using studio demonstrations and experiments. The demonstrations use inexpensive, safe household items to enable viewers to follow along at home or in the classroom. [27 minutes]

  • Outer Space (#109)

    In this episode, Bill Nye explains principles of astronomy by focusing on the sun, planets, the speed of light, constellations, black holes, and the distances in space. The program also includes a segment on the Space Camp at Cape Kennedy in Florida. [27 minutes]

  • Moon, The (#111)

    In this episode, Bill Nye discussed the moon: what it is, where it came from, and how it affects the earth. [27 minutes]

  • Earth's Crust (#112)

    In this episode, Bill Nye explained principles of geology by talking to miners, geologists, glass blowers, and others. [27 minutes]

  • Phases of Matter (#113)

    This episode focuses on the three phases of matter: solid, liquid, and gas. As examples, host Bill Nye looks at fried ice, a cola bottling facility, and molten metal. [27 minutes]

  • Skin (#115)

    In this episode, host Bill Nye focused on skin, including the sense of touch; sweat; goosebumps; skin color; and itching. [27 minutes]

  • Gravity (#116)

    In this episode, Bill Nye discussed the principle of gravity, using airplanes, skydiving, and skateboards as examples. [27 minutes]

  • Blood & Circulation (#118)

    From the fictional "Nye Labs" -- where there's always something bubbling in a beaker -- to far above the earth, Bill Nye takes science out of the classroom, then adds adventure and his own inimitable zaniness to prove just how integral science is to everyday life. Working alongside a diverse cast of children, science experts and celebrity guests, Nye introduces and explores each program's main topic using studio demonstrations and experiments. The demonstrations use inexpensive, safe household items to enable viewers to follow along at home or in the classroom. [27 minutes]

  • Bouyancy (#119)

    In this episode, Bill Nye took to the sky in a hot air balloon, and went scuba diving in the Seattle Aquarium to explain why objects like boats, helium and balloons are buoyant. [27 minutes]

  • Earth's Seasons (#121)

    In this episode, Bill Nye explained how we get different seasons and why when it's winter in the United States, it's summer in Australia. [27 minutes]

  • Garbage (#122)

    In this examination of the vast amounts of non-biodegradable waste humans create, host Bill Nye visited ever-expanding landfills from New York to Florida. [27 minutes]

  • Eyeball (#123)

    In this episode, Bill Nye interviewed a trainer of seeing eye dogs and a virtual reality designer, and demonstrated how a 3-D movie works. [27 minutes]

  • Chemical Reactions (#124)

    From the fictional "Nye Labs" -- where there's always something bubbling in a beaker -- to far above the earth, Bill Nye takes science out of the classroom, then adds adventure and his own inimitable zaniness to prove just how integral science is to everyday life. Working alongside a diverse cast of children, science experts and celebrity guests, Nye introduces and explores each program's main topic using studio demonstrations and experiments. The demonstrations use inexpensive, safe household items to enable viewers to follow along at home or in the classroom. [27 minutes]

  • Wind (#125)

    In this episode, Bill Nye parachuted out of a plane and went sailing to show the relationship between sun, earth, wind, and weather. He also visited a wind farm and checked out the "way cool" windsurfers to show some of the ways to harness the power of the wind. [27 minutes]

  • Biodiversity (#126)

    In this episode, Bill Nye set up office in an ocean, forest, and field to commune with nature and show what happens when one link falls out of nature's chain. [27 minutes]

  • Oceanography (#129)

    In this exploration of oceans, host Bill Nye showed why the seas are salty and explained the dynamics of tides and currents. [27 minutes]

  • Heat (#130)

    In this episode, host Bill Nye discussed the scientific principles related to thermal energy. [28 minutes]

  • Insects (#131)

    In this episode, host Bill Nye examined the world of insects and spoke with special guest Queen Latifah about bees. The lab kids also explored an insectorium and went digging for insect fossils. [27 minutes]

  • Balance (#132)

    From the fictional "Nye Labs" -- where there's always something bubbling in a beaker -- to far above the earth, Bill Nye takes science out of the classroom, then adds adventure and his own inimitable zaniness to prove just how integral science is to everyday life. Working alongside a diverse cast of children, science experts and celebrity guests, Nye introduces and explores each program's main topic using studio demonstrations and experiments. The demonstrations use inexpensive, safe household items to enable viewers to follow along at home or in the classroom. [27 minutes]

  • Sun (#133)

    In this examination of the sun, host Bill Nye explains solar flares, eclipses, sun spots, fusion, and solar energy. He also visits an enormous solar energy farm outside of Sacramento to demonstrate how the sun is the source of energy for all living things. [27 minutes]

  • Brain, The (#134)

    In this examination of the brain, host Bill Nye explains the various functions of the most important organ, and discusses its parts, including the spinal cord, nerves, and the cells in which memories are stored. He also gets an M.R.I. of his brain, and uses optical illusions to show that the brain doesn't always correctly interpret what it sees. This program also features the music video parody, "Whatta Brain," to the tune of Salt 'N' Pepa's "Whatta Man." [27 minutes]

  • Forests (#135)

    This episode focused on environmental issues, including the composition and importance of forests; the greenhouse effect; and the consequences of global warming. [27 minutes]

  • Momentum (#137)

    From the fictional "Nye Labs" -- where there's always something bubbling in a beaker -- to far above the earth, Bill Nye takes science out of the classroom, then adds adventure and his own inimitable zaniness to prove just how integral science is to everyday life. Working alongside a diverse cast of children, science experts and celebrity guests, Nye introduces and explores each program's main topic using studio demonstrations and experiments. The demonstrations use inexpensive, safe household items to enable viewers to follow along at home or in the classroom. [27 minutes]

  • Reptiles (#138)

    This episode examined reptiles, including alligators, snakes, turtles, and lizards. [27 minutes]

  • Atmosphere (#139)

    This episode focused on the atmosphere. Host Bill Nye identified the various atmospheric lawyers and explained why they were necessary to sustain life on earth. [27 minutes]

  • Respiration (#140)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill talks about the lungs, and respiration. [27 minutes]

  • Planets, The (#141)

    This shows uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill discusses the planets in our solar system. [27 minutes]

  • Pressure (#142)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill discusses the force of pressure. [27 minutes]

  • Plants (#143)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV video to try-this-at-home experiments, this series aims to make science fun. In this episode, Bill Nye discusses plants -- how they live, and how they impact the earth. [27 minutes]

  • Rocks & Soil (#144)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill discusses rocks and soil -- how they're formed, and the cycle of which they are a part. [27 minutes]

  • Energy (#145)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill discusses energy--where it comes from, different kinds of energy, and how it's used. [27 minutes]

  • Water Cycle (#147)

    This show expressed scientific ideas in innovative and unusual ways. From parodies of television shows and MTV video to try-this-at-home experiments, the program aimed to make science fun. In this episode, Bill Nye discusses water and how it is part of a continuous cycle. [27 minutes]

  • Friction (#148)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill uses cars, bicycles, bowling and slugs to demonstrate friction. [27 minutes]

  • Germs (#149)

    This series uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, it aims to make science fun. In this episode, Bill Nye discusses how germs and viruses are all around us, and infect our bodies. He discusses how antibodies work, what HIV is, and how one can contract the virus. [27 minutes]

  • Climates (#150)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye discusses climatic variations around the globe, and shows how weather affects locale. [27 minutes]

  • Waves (#151)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye discusses waves of all kinds, including light, sound, micro and electromagnetic. [27 minutes]

  • Ocean Life (#152)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, it aims to make science fun. In this episode, Bill Nye discusses ocean life, including plankton, sea life, and oceanic food chains and ecosystems. [27 minutes]

  • Mammals (#201)

    They're (sometimes) big, they're hairy and they're warm blooded. From man to moose, from cats to rats, Bill Nye The Science Guy explains what it takes to be in the mammal family. This week's music video rocks "Jennifer's A Mammal." [27 minutes]

  • Spinning Things (#202)

    Bill Nye The Science Guy tells us what the Earth, a big storm and a rolling ball have in common. They're all "Spinning Things!" Out of Control! Discover why some things spin and others don't. Music video "Spin Around" is a parody of "Jump Around" by House of Pain. [27 minutes]

  • Fish (#203)

    Take a dive underwater with Bill Nye The Science Guy when he studies "Fish." Explore the depths with these slimy creatures and discover how they breathe, grow and survive in the wet. This week's music video is a parody of Sam & Dave's "Soul Man" featuring Swam and Dive's "Sole Man." [27 minutes]

  • Human Transportation (#204)

    Transportation is on the move! Whether it floats, rolls or flies! Find out how humans move around for food, shelter and to meet other humans in this week's episode, "Human Transportation." The music video, "The Move Groove," parodies Coolio's "Fantastic Voyage." [27 minutes]

  • Wetlands (#205)

    Water, water and more water! The wetlands of the South are researched and explained by Bill Nye. Where the land meets water and what organisms exist there is the whimsical topic of this weeks program. [27 minutes]

  • Birds (#206)

    Bill Nye the Science Guy ruffles up some feathers as he not only explores the wide varieties of birds in our world, but explains how these flocking friends fly (except for penguins and ostrich, of course!). [27 minutes]

  • Populations (#207)

    Whether a gaggle of geese, a colony of ants, or a beaker of bacteria, Bill Nye can explain the population growth of just about any living organism around us. Tune in to see Shirrell Crow sing of populations competing to survive in the music video, "All We Need to Do." [27 minutes]

  • Animal Locomotion (#208)

    Did you know that fish swim by moving their tales from side to side and whales swim by moving their tales up and down? Whether they fly, slither, hop or crawl, Bill Nye will explain how creatures great and small get around. Then, Bjorn Turun turns up the volume with "Loco Motion. " [27 minutes]

  • Rivers & Streams (#209)

    Splash down a rapid river with Bill Nye the Science Guy and explore how ecosystems work and why they are important to our environment. From waterfalls and dams, to the depths of the Grand Canyon, this is one wet and wild ride. This week's music video showcases the Talking Headwaters singing "Take Me to the River." [27 minutes]

  • Nutrition (#210)

    How many calories are in a banana? Are we really what we eat? Bill Nye explains why food is our fuel and fiber is our friend. Rock on in today's music video "Good Nutrition" by Knute Trishan. [27 minutes]

  • Marine Mammals (#211)

    Did you know marine mammals breathe air just like other mammals? Or that marine mammals have their very own unique way of staying warm? Bill Nye explores these fascinating facts and more during this aquatic adventure. [27 minutes]

  • Earthquakes (#212)

    Bill Nye the Science Guy explains how and why earthquakes happen and how the Earth's surface is changed by these amazing occurrences. Then, Bill Nye shows how to make an earthquake happen. [27 minutes]

  • Ntv Top 11 Countdown (#213)

    Bill Nye presents a countdown of his favorite science music video parodies and tunes, including Neyevana's "Smells Like Air Pressure" and Stress N' Tension's "Let's Talk About Stress." [26 minutes]

  • Spiders (#301)

    Creepy, crawly spiders are they friend or foe? Bill Nye takes us into the world of the arachnid to show us they're not insects at all but predators. Spiders are reasonsible for controlling the world's insect population making the spider's existance a benefit to humans. [28 minutes]

  • Pollution (#302)

    Bill Nye talks about different types of pollution and their causes. He also shows us ways to reduce this environmental menace. [28 minutes]

  • Probability (#303)

    Bill Nye explains the scientific principle of "probability"--the likelihood that an event will happen. [28 minutes]

  • Pseudoscience (#304)

    Extraodinary claims require extraordinary proof. Bill Nye demonstrates the difference between real science and pseudoscience. Science is the process of testing claims. Any claim that can't be tested is based in pseudoscience. What's considered a pseudoscience? Things like magic, the use of pyschic, tails of big foot and UFO's--none of these can be scientifically tested. [28 minutes]

  • Flowers (#305)

    This episode of Bill Nye the Science Guy, Bill teaches a lesson about flowers. We learn how they pollinate and how their existence benefits humans. This week's music video is "So Many Flowers." [26 minutes]

  • Archaeology (#306)

    Archeology is the study of humans and how they lived. Bill Nye investigates the principles and methods of this science. Fossils and other artifacts are analyzed using cardon dating to determine their age. Native American drawings are also featured. [28 minutes]

  • Deserts (#307)

    One fifth of the earth's land is desert. Deserts receive very little rain or snow fall so they're always dry. Bill Nye investigates the deserts and rainforests of the planet and how the creatures that live in them adapt to these environments. This episode's music video "Always Dry". [28 minutes]

  • Amphibians (#308)

    In this episode, Bill Nye investigages Amphibians which are neither fish nor reptiles. Derived from the Greek words meaning "living in two worlds", Amphibians have the ability to exist both on land and in water. They can also breath oxygen through their skin. Some amphibians, like frogs, experience a metamorphosis or "change in form". Bill explores the life cycle of amphibians from their early stages of life in water through their metamorphosis into land dwelling creatures. This episode's music video is "The Amphidelic Mothership Metamorphosis". [28 minutes]

  • Fossils (#309)

    From the fictional "Nye Labs" -- where there's always something bubbling in a beaker -- to far above the earth, Bill Nye takes science out of the classroom, then adds adventure and his own inimitable zaniness to prove just how integral science is to everyday life. Working alongside a diverse cast of children, science experts and celebrity guests, Nye introduces and explores each program's main topic using studio demonstrations and experiments. The demonstrations use inexpensive, safe household items to enable viewers to follow along at home or in the classroom. [26 minutes]

  • Time (#310)

    The sun and moon both affect time. Bill Nye the Science Guy helps us understand the elements of time and how it's measured. This episode's music video is "Time Time Time Time Time..." [28 minutes]

  • Forensics (#311)

    This shows uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye discusses forensics. It is the branch of science that helps investigators solve crimes. [26 minutes]

  • Genes (#313)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-hom experiments, this program aims to make science fun. In this episode, Bill Nye helps us understand how genetics works. [26 minutes]

  • Architecture (#314)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye discusses architecture. [26 minutes]

  • Farming (#315)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye discusses farming. Just about all the food that we consume is grown and gathered on a farm. With the changing face of technology, farmers have been able to change the environment in order to grow food. Bill Nye speaks with two farmers about their work, Masatoshi Osada and Ray DeVries. [26 minutes]

  • Volcanoes (#316)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at home experiments, this show aimes to make science fun. In this episode, Bill Nye discusses volcanoes. Bill explains how and why volcanoes erupt, how they are key in the formation of the earth's natural beauty such as the formation of lakes and the re-routing of rivers, the different sizes and forms of volcanoes, and a look at the most devestating volcanoe eruption in history, Mount St. Helen in 1980. [26 minutes]

  • Invertebrates (#317)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From parodies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye discusses invertebrates, their chararcteristics, how they live and the differences between them and vertebrates. [26 minutes]

  • Heart (#318)

    This show uses innovative and unusual ways to express scientific ideas in an interesting manner. From paradies of television shows and MTV videos to try-this-at-home experiments, this program aims to make science fun. In this episode, Bill Nye discusses the most important muscle in our body, the heart. From demonstrations and an interview with Heart Surgeon, Dr. Salim Aziz we learn how the heart works and how we can keep it strong. [26 minutes]

  • Inventing (#319)

    From parodies to television shows and MTV videos to try-this-at-home experiments, this program aims to make sceince fun. In this episode, Bill Nye discusses inventions. [26 minutes]

  • Computers (#320)

    From parodies of television shows to MTV videos to try-this-at-home experiments, this program aims to make science fun. Bill Nye gets lost in cyberspace, when he explores the wonderful world of computers. [26 minutes]

  • Life Cycles (#401)

    Birth, growth, reproduction, death are part of the cycle of life. "Bill Nye, the Science Guy" explores the process and meaning of the life cycle -- the common destiny of every living thing. [28 minutes]

  • Do-It-Yourself Science (#402)

    Science is part of our daily lives. This week Bill Nye demonstrates some complex scientific principles using some simple home experiments. [28 minutes]

  • Atom (#403)

    Atomos are the smallest particle known to man. Bill Nye show's us how atoms make up molecules and moleculs form matter. [28 minutes]

  • Ocean Exploration (#404)

    Is space really the final frontier? Bill Nye says no. The ocean makes up two thirds of the world's surface and remains largely unexplored. This episode boldly takes us were few have gone before--to the bottom of the ocean. [28 minutes]

  • Lakes and Ponds (#405)

    Bill Nye studies lanks and ponds and how they are formed. This week's music video is "Fond of Lakes and Ponds." [29 minutes]

  • Smell (#406)

    Bill Nye studies the mechanics of smell. Aroma/odor molecules travel into the nose and dissolve in the mucus of the nose. Those same molecules are then picked up by the epihelial olfactory nerve cells. A signal is sent to the olfactory nerve where the smell is recognized by the brain. This week's video is "Come on Use Your Brain (Smell This)" [28 minutes]

  • Caves (#407)

    Bill Nye explores the world of caves. Stalactites, stalagmites and a host of creepy creatures make their homes in these naturally occurring hollow spaces. Caves form where ever material-- rock or ice--gets carried away from an underground space stiff enough to support a roof. There are caves under ice, caves under water, and caves under ground. Caves can exist almost anywhere. This episode's music video is "Cave Thing". [28 minutes]

  • Comets and Meteors (#408)

    Bill Nye takes a quick trip around the solar system to learn more about the comet Halley, how to buckle an asteroid belt and what to look for during a meteor shower. [28 minutes]

  • Fluids (#409)

    Bill Nye flies in a balloon to get a bird's-eye-view of hot air rising and swims around a boat propeller to show viewers how flowing fluids keep the world moving. [28 minutes]

  • Storms (#410)

    Bill Nye looks at extreme weather, taking viewers into the eye of a hurricane, the heart of a raging blizzard and the middle of a thunderstorm to show what happens when the weather goes wild. [28 minutes]

  • Erosion (#411)

    The Science Guy wears down the facts on erosion -- the blowing of winds, the flowing of water and ice, and the action of chemical reactions that have scored away and changed the face of the Earth. [28 minutes]

  • Science of Music (#412)

    Bill Nye uses a collection of the series' best music video parodies to explain everything from vibrations to rhythm and blues. [28 minutes]

  • Measurement (#413)

    Without measurement, people wouldn't know when the next bus was leaving, what shoe size they need or how hot the oven needs to be to bake a cake. The Science Guy examines different kinds of measurement, from figuring out the size of an atom to estimating the size of the planet. [28 minutes]

  • Patterns (#414)

    Bill Nye demonstrates how scientists rely on patterns to make comparisons - how a spiral can describe a galaxy, a piece of DNA or a nautilus shell. From tree rings to tropical storms, constellations to fractals, scientists use patterns to understand the universe. [28 minutes]

  • Motion (#415)

    Newton's Laws of Motion: Objects at rest tend to stay at rest until acted upon by an outside force; For every action, there is an equal but opposite reaction. Bill Nye investigates Motion and the relationship between it the scientific principles of Inertia, Mass, Force and Gravity. [28 minutes]

  • Earth's Crust (#501)

    Bill goes to the depths of the earth (literally) to explain how the Earth's surface and its inner mantle differ. [23 minutes]

  • Gravity (#502)

    Have you ever wondered what holds the ocean on the Earth? Or what makes the Earth round? Perhaps you've thought about what holds humans to the ground? Bill provides the explanation for these and other questions about the earth's gravity. [23 minutes]

  • Digestion (#503)

    Bill explains to viewers how the body's digestive system is like a fine-tuned machine that turns food into energy. He demonstrates the process with a steam engine that runs on cornflakes. [23 minutes]

  • Magnetism (#504)

    In this attracting and not-too-repelling program, Bill shows all kinds of unexpected places where magnets can be found. In fact, the Earth itself is a huge magnet! Find out how to make a compass and why opposites attract. [20 minutes]

  • Chemical Reactions (#505)

    Have a blast watching the explosive examples Bill uses to explain that everything is made of chemicals. Guest star Candace Cameron ('Full House') shares the lab with Bill and shows that fire is actually a chemical reaction. Together, they extinguish a 'tornado of fire.' [23 minutes]

  • Food Web (#506)

    Watch Bill become tangled in a complex food web in his quest to demonstrate that all living things depend on other living things to survive. [22 minutes]

  • Light Optics (#507)

    You won't believe your eyes when the Science Guy reflects, refracts, bends, bounces, absorbs, and pulls light waves to show how things can be seen in different ways. Using lenses, mirrors, and water, Bill's optical illusions are sights to behold. [22 minutes]

  • Sun (#508)

    Bill sheds light on solar flares, eclipses, sunspots, fusion, and solar energy, and visits an enormous solar energy farm outside Sacramento, California, to demonstrate how the sun is the source of energy for all living things on Earth. [19 minutes]

  • Atmosphere (#509)

    The Science Guy talks about atmosphere, its five different levels, and how it protects the Earth. Bill soars into the heavy topic of atmospheric air pressure and radio waves. [23 minutes]

  • Respiration (#510)

    Bill gets aerobic about the importance of respiration when he jogs, bikes, swims, and scuba dives. Discover how to measure how much air each breath contains and make a model lung in a nifty home experiment. See a demonstration of how cigarette smoke can infiltrate and injure lungs. [23 minutes]

  • Planets, The (#511)

    Bill goes planet gazing and takes a serious look at Jupiter's features, Earth's elliptical orbit, and the distances between planets. A cool home demo shows how to make Mars soil. [22 minutes]

  • Plants (#512)

    The Science Guy branches out and gets to the root of the matter to explain wild things about plants such as how they breathe, make food, defend themselves, and move their seeds around. [23 minutes]

  • Evolution (#513)

    Bill compares primordial to present when he dabbles with Darwin and looks at his genes in this evolutionary episode. Explore the surprising similarities shared by all living things and ponder the possibility that birds evolved from dinosaurs. [23 minutes]

  • Friction (#514)

    Bill illustrates how various types of transportation utilize friction, from the use of traction in trains and the 'roll' of ball bearings in skateboards and automobiles, to the lack of friction in a hovercraft. [23 minutes]

  • Climates (#515)

    Bill delivers hot sand from Saudi Arabia and bananas from humid Costa Rica, all to explain how different climates are created and how they affect our planet. [23 minutes]

  • Ocean Life (#516)

    The Science Guy knows everyone who's anyone in the ocean's food chain, from the tiny, meek species at the bottom, all the way to the large, ferocious species at the top. Bill goes underwater to talk about ocean ecosystems and the importance of small organisms such as coral, plankton, and kelp. [23 minutes]

  • Mammals (#517)

    They're (sometimes) big, they're hairy, and they're warm-blooded. From human being to moose and from cats to rats, Bill explains what it takes to be in the mammal family. [23 minutes]

  • Populations (#518)

    A peep of chickens, a pride of lions, a gaggle of geese, and a crowd of people. What do they all have in common? They're all populations! The Science Guy explores how these living groups compete for food, homes, and space. [23 minutes]

  • Earthquakes (#519)

    Thousands of earthquakes happen each year and Bill trembles in his boots when he explains what causes them. Find out what makes big pieces of the Earth's crust (the plates) move and what you should have on hand in case of a quake. He also visits with scientists who study and measure earthquakes. [23 minutes]

  • Pollution Solutions (#520)

    From cleaning our water to cleansing our air, Bill demonstrates how important it is for all humans to prepare for the future by recycling, researching, and developing innovative solutions to combat this 'way UN-cool' worldwide problem. [23 minutes]

  • Probability (#521)

    There is a good chance this will be one of Bill's best episodes! In fact, he'll probably make the complicated concept of probability very simple to understand, while showing how it allows us to predict events. [21 minutes]

  • Flowers (#522)

    The Science Guy, with the help of guest Drew Barrymore, shows that flowers are more than just pretty faces. They make seeds, play a key role in pollination, and help plants to reproduce. [23 minutes]

  • Deserts (#523)

    Bill travels to Arizona's stunning Sonoran desert--and has a close encounter of the camel kind--while exploring this unique ecosystem and demonstrating the special ways its native plants and animals flourish. [23 minutes]

  • Heart (#524)

    Bill checks out this important muscular pump's function in the body, by pulling nine 'Gs' with the United States Navy's Blue Angels and chatting with Seattle Mariner Edgar Martinez. [23 minutes]

  • Inventions (#525)

    All day long our lives are made easier by one invention or another, but we may not realize that not all inventions are carefully planned--some of the most valuable inventions come about by accident! Bill examines the process of inventing, with help from actor Samuel L. Jackson. [23 minutes]

  • Genes (#526)

    Did you know that humans have about 80,000 genes? And that genes determine everything from hair and eye color to whether or not you can roll your tongue? It's all in the genes you inherited from your mother and father (23 pairs to be exact). Join Bill as he explores the chromosomal world of DNA. [23 minutes]

  • Do-It-Yourself Science (#527)

    Who knows better than the Science Guy that you can demonstrate big scientific ideas with small experiments? Get a lesson in 'Do-it-Yourself Science' from Bill himself and learn how you, too, can conduct scientific experiments. [22 minutes]

  • Lakes & Ponds (#528)

    Bodies of water surrounded by land on all sides are called lakes if they're large, and ponds if they're small. Lakes and ponds are formed when water collects (it pools!) in a low place in the ground. Where does all that water come from? Bill ponders this and many other freshwater questions in this exciting program. [23 minutes]

  • Storms (#529)

    Storms happen when huge masses of air collide. Disaster or not, storms benefit us. The tropical regions of the earth would be too hot to inhabit--and the subpolar regions too cold--if we didn't have hurricanes and typhoons to distribute the Earth's heat so efficiently. And besides, a good storm can sure put on a great show! [23 minutes]

  • Motion (#530)

    Did you know that nothing can move or stop by itself? Everything needs a push or pull--a force--to make it move or stop. Sometimes an object might seem to be at rest, even when it is in motion. Confused? It's all relative. Relative motion, that is. [23 minutes]

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