Bill Nye: The Science Guy

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Disney Channel (ended 1998)

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Episode Guide

  • Specials
    • No episodes have been added for this season of Bill Nye: The Science Guy.
  • Season 1
    • Flight
      Flight
      Episode 1
      9/10/93
      8.9

      Things that fly need air. Even though we walk through it, breathe it, and sneeze it, air seems to be a whole bunch of nothing. But air is there, and it's powerful. Balloons inflate because air presses on the insides and outsides of the balloon. Air pressure in tires supports the weight of bikes, buses, trucks, cars, and planes. But air doesn't need to be inside something to exert pressure. Air that moves around pushes, too.
      What do birds, planes, kites, Frisbees, and helicopters have in common? They fly because moving air creates lift, or a push up. Airplane wings are shaped to push air down. The momentum of the air going down pushes wings up. Air above the wing gets going faster than the air underneath. Fast-moving air zips along, without pushing as hard side to side or up and down. The slow air pushes up from below harder than the fast air pushes down from above ... and you're airborne!
      Every flying thing, from the tiniest flying insect to the biggest airplane, uses momentum and these differences in air pressure to fly. The pressure force is called the Bernoulli Effect, named after the scientist who discovered it. Without it, we'd be grounded.
      So don't miss the "Flight" show -- where Bill Nye takes you up, up, and awaaaay.

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    • Earth's Crust
      Episode 2
      9/17/93
      9.5

      Don't just go with the flow. Settle down on the crust.
      Imagine a world without any crust. There would be no pies, just goopy filling, no bread, no hamburger
      buns, and no you or me. That's right. You, and every living thing we know of, live on or in the Earth's crust.
      And, living things need the Earth's crust to survive. Let's look at the science of the surface.
      By carefully studying the Earth's surface, scientists have discovered that the Earth is made up of gigantic
      layers. At the center of the Earth, there is a core � a big ball of solid metal mostly iron.
      The core is surrounded by a layer of liquid iron and other minerals. We usually just call it the outer core.
      The next layer, around the outer core is called the mantle. You may have seen a mantle above a fireplace.
      Well, the mantle is above the Earth's hot core places. The mantle is gooey hot nearly melted rock that
      flows the way asphalt does on a hot summer day. Scientists often say that the mantle is plastic. It bends.
      We call the mantle's nearly liquid rock magma. When magma flows onto the surface, on top of the crust,
      we call it lava.
      The Earth's crust is thin, only about 100 kilometers thick. If the Earth were the of a peach, the crust
      would only be as thick as the peach's skin (and not as fuzzy). If the Earth hadn't cooled enough for the
      crust to form on its surface, we wouldn't be here. Neither would any living thing we know of.
      Scientists have never been able to dig or drill down through the crust to the mantle. Driving 100 kilometers
      is easy. Drilling that far through solid rock is hard. Well, it's solid rock. But, we can study the inside of the
      Earth by observing volcanoes and geysers. The heat that melts rock into magma, and turns underground
      water into steam, comes from under the crust.
      We haven't even begun to scratch the surface. Watch Bill Nye the Science Guy to find out more about
      "The Earth's Crust."

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    • Dinosaurs
      Dinosaurs
      Episode 3
      9/24/93
      9.6

      We can dish the real dirt about dinosaurs, thanks to fossils - traces of theses astonishing animals.
      Dinosaurs did not print newspapers. They did not take family snapshots or videos 65 million years ago.
      The only proof scientists have of dinosaurs is their fossils, especially bones. They would never have
      survived billions of years waiting for some human to trip over them. Luckily for paleontologists (scientists
      who study the past), now and then dinosaurs died, and their bones were covered by mud, or sand. As
      the bones sat protected from weather, they absorbed minerals from the soil around them. The minerals
      chemically worked their way into the bones. Millions of years later, we can find them and dig them up.
      Humans were not around to see what actually killed the ancient dinosaurs. Many scientists think a
      meteorite, or lots of meteorites, crashed into the Earth. When the space rocks hit the ground, they made
      big craters and kicked up a lot of dust and dirt. If enough dust flew into the air, sunlight couldn't get
      to Earth, and the plants died off. Without plants for food and oxygen, the dinosaurs died. The meteorite
      impact is just a theory, but a very, very good one. We may never be sure what really happened because,
      as this episode of Bill Nye the Science Guy points out: dinosaurs and humans did not live at the same
      time!

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    • Skin
      Skin
      Episode 4
      10/1/93
      9.0

      Learning about skin science is no sweat.
      It's gigantic. It's gargantuan. It's your skin. It's your body's biggest organ. If you could lay your skin out
      flat, it would cover about one and a half square meters. Your skin stops you from drying out, protects you
      from the weather, and keeps bacteria and viruses from getting inside your body.
      Your skin is also your personal air conditioner and heater all in one. Sweating cools you off. When you're
      hot, glands in your skin push a mixture of water and other chemicals onto the surface of your skin. When
      the water evaporates, it takes some of the heat with it, and you're cooler. When you're too cold, your skin
      muscles start twitching. Shivering makes your body warm up.
      Without skin, you wouldn't be able to feel the difference between a sheet of paper and a wool blanket.
      There are thousands of touch receptors inside skin. When you touch the remote control, the receptors
      send information about the remote's temperature, thickness, and feel of the buttons to your brain. Your
      brain makes decisions about what to do with the remote control. But here's hoping your brain would never
      tell you to turn the channel while the Skin show is on...right?

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    • Bouyancy
      Bouyancy
      Episode 5
      10/8/93
      9.7

      A hot-air balln ride and a trip to the aquarium help Bill Nye explain why things float

    • Gravity
      Episode 6
      10/15/93
      9.3

      Next time you throw a ball in the air, and it doesn't fly off into outer space, thank gravity.
      Right now, you and everything in the room where you are, is getting pulled down by gravity. If you don't
      believe it, push a book of your desk. It will go plummeting toward the center of the Earth. It's gravity. The
      Earth's mass, the stuff it's made of, creates gravity. It's pulling down on you and every other object you
      can see; it's even pulling down on the air and the ocean. Not only that, you and every atom of every thing
      around you has gravity. So, the objects and atoms are all, ever so slightly, pulling up on the Earth!
      Without gravity, there would be no weight. When you step on a bathroom scale, the scale is getting
      squeezed between you and the Earth. The scale measures how strong this mutual attraction is. Gravity
      makes a force that pulls objects together.
      Not only is gravity pulling on every atom and molecule of everything around us, it pulls over huge, gigantic
      distances. The planets are held in the orbits around the Sun by gravity. The Sun's mass and the mass of
      the Earth create enough gravity to hold us in orbit, even though we're 150 million kilometers away. The
      gravity for the Earth, all the other planets in our Solar System, and all the stars and galaxies in the Universe
      has been pulling steadily for billions of years.
      Since gravity only pulls, and since gravity pulls on every speck of matter, when there's enough matter in
      one place like a planet or moon, gravity makes them form into a ball or sphere. The reason the Earth, the
      Moon, the Sun, Jupiter, Neptune, and Pluto are all round is that their own gravity pulls evenly in all directions
      at once.
      Bill Nye pulls you into this show� with Gravity!

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    • Digestion
      Episode 7
      10/22/93
      9.3

      Take time to digest this show.
      They say that your food is no more inside you than a pencil is inside a donut, when it's poked through
      the hole. Instead of the food going in you, food goes through you. But, all the energy you get to live and
      grow comes from your food. All the chemicals that become your body and brain as you get bigger, come
      from your food. You get these vital chemicals through a process called "digestion." Your body breaks
      food down and grabs all the nutrients you need from it. Then, your body gets rid of what's left over.
      Digestion starts in your mouth. You begin breaking food down by breaking it into pieces with your teeth
      and jaw muscles. Your saliva (your spit) is full of chemicals that react with the chemicals in food and
      make them break apart. Then you swallow. Your food goes down a tube (your esophagus) to your stomach,
      where powerful hydrochloric acid breaks it down further into a mushy mash we call chime (kime). From
      there, the chime goes into your intestines, and that's where your body starts to absorb the nutrients you
      need. Eating is complicated. For your body to have energy to do work, your digestive system has to do
      some work. So take care of it. Then, you'll have energy to play.
      Chew it up; soak it in acid; use those chemicals to watch Bill.

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    • Phases of Matter
      Phases of Matter
      Episode 8
      10/29/93
      7.9

      Bill Nye is going through a phase - a phase of matter. Check out the "Phases of Matter" episode
      to find out about rock-solid solids, liquidy liquids, and gassy gases. It's phase-tastic!
      Everything around us is made of stuff called matter, and all matter is made of atoms. Matter is anything
      that comes in three varieties, what scientists call phases. There are solids like rocks, cookies, and desks.
      There are liquids like water, honey, and juice. And there are gases, we breathe air and the helium in
      balloons. The main difference between the three phases is how fast the matter's atoms move.
      All atoms move around because they have energy. The more energy that's in something, the faster the
      atoms move. Atoms in an ice cube don't move very much - they're frozen in place. The atoms in liquid
      water slip and slide around - that's why you can pour it and spill it. Water vapor atoms are moving pretty
      fast - that's why they float around in air (a mixture of other gasses). Changing an object's phase of matter
      is just a matter (ha, ha) of adding energy to atoms or taking it away.
      Heating adds energy to atoms, and cooling takes energy away from atoms. If you fried an ice cube in a
      pan on a stove, you would see all three phases of matter - ice cube, liquid water, and water vapor.
      Watch the "Phases of Matter" show and your science will be solid!

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    • Biodiversity
      Biodiversity
      Episode 9
      11/5/93
      9.1

      Ecosystems are areas where things live. Ecosystems that are biodiverse are home to a variety of
      plants and animals. A healthy ecosystem is one with a lot of biodiversity.
      Imagine if humans could only eat one kind of food, say corn. We'd be in big trouble if all the corn
      disappeared. Besides not having anything to munch on at the movies, we'd have nothing to eat at all.
      Luckily, our ecosystem covers a big part of the Earth, and there are lots of different plants to eat. Ecosystems
      are not as simple as one living thing eating another, as the corn example. The lives of animals and plants
      are intertwined - what happens to one animal can have an impact on all sorts of living things.
      As humans, we have a big effect on the other living things around us. We are the only animals to leave
      lots of stuff around, such as houses, cars, and malls. It's important for us to think about the choices we
      make and how they will affect the other living things around us. Remember: The Earth is not just our home,
      it's home to all living things. Without those other living things, there would be no you or me.

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    • Simple Machines
      Simple Machines
      Episode 10
      11/12/93
      9.2

      Learning about science can be hard work, but simple machines can make it easier. Let Bill Nye
      push and pull you around ramps, levers, screws, and pulleys.
      Simple machines simply make work easier by directing forces over distances. Instead of lifting a heavy
      box upstairs, you can hook it to some ropes and pulleys and pull it up. Or you can get a ramp and slide
      it upstairs. Either way, it's less sweat to use the pulleys or the ramp than it is to lift the box straight up
      by yourself because the force you need is more spread out. Levers, ramps, screws, wheels, wedges, and
      pulleys are all simple machines designed to direct forces.
      With simple machines we don't have to push or pull as hard, but we have to push or pull over a longer
      distance. It's easier to walk up a long set of stairs to the top of the Empire State Building than it would
      be to climb a ladder to the top, but the set of stairs would be much longer than the ladder.
      Simple machines are simply scientific.

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    • Moon
      Moon
      Episode 11
      11/19/93
      9.7

      Let the moon master Bill Nye teach you the ancient and not-so-ancient secrets of the Moon.
      Wax on, wax off. The Moon grows bigger (waxes) and smaller (wanes) every 30 days or so. The word
      "month" comes from the word "moon". The Moon is the closest thing in space to Earth, and it's one of
      the most well-studied orbs in our solar system. We know that Moon rocks are rich in calcium and aluminum,
      that the Moon has no atmosphere, and that there are over a million craters on the Moon's surface. The
      Moon doesn't glow on its own, it reflects sunlight.
      Watch the Moon every night for a month as it grows, shrinks, and at one point disappears. The Moon
      doesn't actually change it's shape. It's the way the sun shines on the part of the Moon we see that makes
      the phases change. The Earth moves around the Sun, the Moon moves around the Earth. As the Moon
      moves through its orbit, the Sun shines on bigger or smaller portions of it. If you were looking at the Moon
      from the Sun, it would always be full, as long as the Earth weren't in the way.
      Bill Nye and the Moon - it's lunar lunacy.

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    • Sound
      Sound
      Episode 12
      11/26/93
      9.4

      Listen up, scientists. Bill Nye is here to make some noise in the "Sound" episode.
      Your vocal cords do it. Speakers playing rock music do it. Even a school bell does it. They all vibrate; and
      that's how sound is made. Plucking a stretched rubber band makes the rubber band vibrate. Air molecules
      around the rubber band move, pushing other air molecules. As the rubber band continues to vibrate, it
      sends waves of sound through the air. It's a lot like the ripples you see when you drop a rock into a pond.
      You hear sound when rippling air pushes on tiny bones in your ears. Nerves in your ears send a message
      to your brain about the sound you're hearing.
      Different sounds make different patterns of waves with different distances between them. Plucking,
      banging, whispering, and yelling are all vibrations in air, yet they all sound very different. Sound vibrations
      can be thought of as waves moving through molecules. Low-pitched sounds have big gaps between
      waves, while high-pitched sounds have waves that are bunched together. Loud sounds have more
      molecules moving and more energy than soft sounds.
      Sound is much more than music. It's not just noise...it's science.

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    • Garbage
      Garbage
      Episode 13
      12/3/93
      9.2

      Bill Nye explains garbage and how it is a growing concern. He also demonstates ways of reducing the amount of garbage produced.

    • Structures
      Structures
      Episode 14
      12/10/93
      9.2

      Are you tense? Need some structure to your life? Then tune in to Bill Nye the Science Guy as he
      explains the science of structures.
      All structures give support or create a shape. You can find structures everywhere. Bridges, buildings,
       chairs, shoes, plants, spiderwebs, tables, and even your own body are all structures. A structure's shape,
      and what it's made of depend on what the structure does and how strong it needs to be.
      When structures give support, they either experience a pull (tension) or a push (compression). Structures
      in tension, such as ropes, cables, or blimps are made from stuff that is good at pulling. The materials in
      tension are usually thin. Structures under compression, such as elephant legs and courthouse columns,
      are made from hard stiff stuff. Compared to structures under tension, structures under compression are
      much thicker. When it comes to structures, form (the and shape) depends on function (what it does).
      Build support for Bill by watching the "Structures" episode.

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    • Earth's Seasons
      Earth's Seasons
      Episode 15
      12/17/93
      9.5

      It doesn't matter if it's spring, summer, winter, or fall - Bill Nye is always in season.
      Every year, we experience the seasons. Some months have snow and rain, while other months have
      warmth and sunshine. Temperatures go from cold, to woarm, to cold again � winter, spring, summer, and
      fall. The cycle of the seasons takes one year, and the Earth takes one year to go around the sun.
      Coincidence? No way.
      The Earth's orbit around the Sun is flat, as though our planet were spinning over a tabletop. Compared
      with flat plane of its orbit, the Earth is tilted. Its axis, the imaginary line between the North and South
      Poles, is tipped over a bit. In June, the north half of the Earth (the Northern Hemisphere) is tilted toward
      the Sun, and it's summertime in places like Nye Labs in the United States. Meanwhile, the south half (the
      Southern Hemisphere) is tilted away from the Sun, and it's winter there, in places like Australia and South
      Africa.
      The Earth's orbit isn't quite a perfect circle. It's like a circle that's been squeezed a little. It changes the
      Earth's distance from the Sun. We're closest to the Sun in December, when it's summer in the Southern
      Hemisphere. The tilt affects the seasons more than the slightly oblong orbit.
      Neither rain, nor sleet, nor wind, nor snow can stop Bill Nye or the Earth's Seasons.

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    • Light and Color
      Light and Color
      Episode 16
      12/24/93
      9.5

      Lighten up. It's the "Light and Color" episode.
      Without light, we wouldn't be able to see. It would be like living in a room with no windows, doors, or
      lamps. There's an old saying, "We don't see things; we see light bouncing off of things." We see things,
      and colors, when light bounces off things and into our eyes. White light, like the light from the Sun, is
      made up of all the different colors of light blended together. When white light hits something white, almost
      all of the light bounces into our eyes, and we see the color white.
      Things are different colors because some light bounces off and other light gets absorbed.
      An orange is orange because it absorbs all different colors of light except orange light.
      Grass is green because it absorbs all different colors of light except green light.
      Bill Nye's lab coat is blue because it absorbs all different colors of light except blue light. All colors,
      including black, are made in the same way. It's just a matter of reflecting or absorbing light.
      Science will "color" your world with Bill Nye the Science Guy.

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    • Cells
      Cells
      Episode 17
      1/21/94
      7.8

      You can't see them, but they're everywhere even inside Bill Nye. This is not science fiction, it's the
      science of cells.
      All things that live are made from cells. You can't see them, but every part of your body, including everything
      inside your body, is made from cells. Cells eat, they grow, and they make more of themselves (what
      scientists call replicate).
      There are millions of different types of cells. Dog cells are different from fish cells. Bird cells are different
      from your cells. And inside your body, there are many different cells, each one doing a different job to
      keep your body going.
      Cells may be tiny, but without them, we'd be nothing.

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    • Electricity
      Electricity
      Episode 18
      1/28/94
      9.4

      It's time for Bill Nye to shed a little light on electricity.
      Electricity might seem mysterious, but once you understand the science the light goes on (so to speak).
      You flip a switch, and the lights turn on. You push the play button, and your personal stereo starts playing
      music. When you flip the switch or push play, you start a flow of electrons. Electricity is the flow of
      electrons, and electrons are very tiny charged particles. Electrons are found in atoms, the tiny pieces that
      all stuff is made from. We can make electrons flow in two ways. Batteries make electricity by mixing up
      chemicals -- making a chemical reaction that forces electrons to move in a path from the battery to the
      personal stereo and back to the battery. Electricity that turns on lights in your home is made by power
      plants. Most power plants use big machines called generators to make electrons by twirling wire in a
      magnet. The magnet makes electrons in the wire move around, creating electricity. Electrons really know
      how to go with the flow.
      Electricity sure gets Bill charged up, so be sure to watch the show!

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    • Outer Space
      Outer Space
      Episode 19
      2/4/94
      9.8

      The show is way out there, way far away. After all, it's in Outer Space.
      When you look at the night sky on a clear dark night, you can see thousands of stars. There are far more
      than you could count. And, they are way out there. They are very, very far away. It's about the hardest
      thing to imagine about space. Let's talk about the nearest star to us, the Sun. If somehow outer space
      were not an icy cold vacuum with nothing to eat, drink, or breathe, and we could drive there in a car, to
      get to the Sun at freeway speed of 100 kilometers/hour (61 miles/hour), it would take171 years of driving
      without stopping to sleep or get gas out in the near nothingness of space. That's just to the Sun. To get
      to even the closest star, Proxima Centauri, would take 40,000 years. On top of that, most things, billions
      and billions of stars, are much, much farther away than that! It is just astonishing.
      How do we know that everything is so far away? We have watched the sky for centuries. By watching
      carefully the motions of the points of light across the sky, humans have been able to estimate how far
      away objects are. It took us years, and years, but you can watch this episode in less than 29 minutes.
      Bill might seem a little far out in this episode. Maybe he's getting spacey.

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    • Eyeball
      Eyeball
      Episode 20
      2/11/94
      9.4

      Look no further ... Bill Nye is on the ball - the eyeball.
      For their small your eyes do an important job. By working with your brain, your eyes can tell the
      difference between thousands of different colors. They can follow a fast-moving hockey puck across the
      ice. They are even sending messages to your brain about what you're reading right now. Eyes work a lot
      like a camera. They take in light, focus light, and make images. With help from the brain, your eyes help
      understand the world around you.
      Light bouncing into your eye passes through an opening called the pupil. If you look in the mirror, your
      pupil is the black area in the middle of your eye. The pupil can open or close, depending on the brightness
      of the light. After passing the pupil, the light is focused onto the back of your eye by the lens, a thin layer
      of cells. On the back of your eye are special cells called rods and cones that are sensitive to light. These
      cells send electrical messages to your brain through your big optic nerves. Having two eyes lets us look
      at the same features from two slightly different angles. We can see how far away things are. Then it's up
      to your brain to decipher what exactly you're looking at.
      The "eyes" have it -- Bill Nye's "Eyeball" episode is outta site!

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  • Season 2
  • Season 3
  • Season 4
  • Season 5
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