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BROWSING SEASON 4 OF THE TV SERIES BILL NYE THE SCIENCE GUY

Rivers & Streams
Bill Nye The Science Guy - Rivers & Streams
Season 4 - Episode 1

Show Description Water is massive; rivers are powerful. As rivers flow downhill, they wear away rock and soil to form canyons or winding curves in the land, called meanders. Sometimes rivers fill and overflow their banks. Rivers with too much water create floods that can carry away plants, trees, buildings and boulders. Rivers and streams support most of the ecosystems on land.
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Nutrition
Bill Nye The Science Guy - Nutrition
Season 4 - Episode 2

Show Description All food, whether its protein, fat, carbohydrates, vitamins, or minerals, is made of chemicals. When your body gets a hold of these chemicals, it recombines them and makes energy. Different types of food make different amounts of energy, which are measured in calories. How do scientists figure out the amount of calories in food? In this episode, Bill will reveal the secrets of the bomb calorimeter an instrument of food science.
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Marine Mammals
Bill Nye The Science Guy - Marine Mammals
Season 4 - Episode 3

Show Description Whales, dolphins, otters, walruses, and orcas are just like us, theyre mammals. Well, theyre not just like us. They live in the ocean. They breathe air, have hair, nurse their babies, and they are warm-blooded. They keep the same body temperature all day. To do that in the ocean isnt easy. Water soaks up heat, so the ocean is really pretty cold. Marine mammals have all sorts of ways to keep warm. Whales, dolphins, and walruses have thick layers of fat called blubber. Its great insulation. It holds their body heat keeping them warm in the cold ocean. Sea otters have thick layers of fur that cover their whole bodies. Otters fluff their fur to trap air between the hairs. It helps them float, it the air keeps them warm even when they dive deep hunting for food. These adaptations make it possible for marine mammals to live all over the worlds oceans.
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Earthquakes
Bill Nye The Science Guy - Earthquakes
Season 4 - Episode 4

Show Description Earthquakes happen when pieces of land in the Earths crust scrape together. The crust of the Earth is made of big slabs of land called plates that are constantly moving just a little bit. The plates scrape by one another, and sometimes they dont move smoothly. An earthquake happens when the plates get unstuck suddenly and jerkily slip past each other. The majority of earthquakes occur along plate boundaries such as the boundary between the Pacific Plate and the North American plate. One of the most active plate boundaries for earthquakes is the massive Pacific Plate commonly referred to as the Pacific Ring of Fire. The fire comes from the volcanoes that form near the edge of the plates.
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NTV Top 11 Video Countdown
Bill Nye The Science Guy - NTV Top 11 Video Countdown
Season 4 - Episode 5

Show Description Join Bill Nye as he counts down the hits from the Soundtracks of Science. Along with the music, Bill does a few new experiments on the lab bench.Youll see the grunge band Nyevanas classic Air Pressure, Momentiseys The Faster You Push Me, and divas En Lobes Whatta Brain. Theres even a special appearance by Mudhoney, a real band from Seattle. But if you want to know whos the number one artist from Not That Bad Records, youll have to tune in.
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Spiders
Bill Nye The Science Guy - Spiders
Season 4 - Episode 6

Show Description Be sure to get this straight: spiders are not insects, theyre arachnids. Spiders have eight legs, and insects have only six. Spiders have two body parts, a head and an abdomen, while insects have three body parts, a head, a thorax, and an abdomen. Insects have antennae, and spiders do not. Some insects sting. All spiders have fangs and venom. There are almost certainly a few spiders in the room with you right now.
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Pollution Solutions
Bill Nye The Science Guy - Pollution Solutions
Season 4 - Episode 7

Show Description Dirty water, land, and air are a result of pollution. People are the only animals on Earth that make pollution. Garbage, burning fuel, chemicals, sewage, oil, and pesticides are all human-made things that make the Earths atmosphere, water, and soil unclean.Humans are even leaving trash in space, such as broken satellites, pieces of metal, paint from rocket skin, and even cameras and toothbrushes. Much of the junk people make and leave behind hurts plants, animals, you and me.
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Probability
Bill Nye The Science Guy - Probability
Season 4 - Episode 8

Show Description Probability is a way to measure how likely it is that something will happen. Probabilities are predictions. Theyre often just very careful guesses. When a scientist wants to calculate a probability, she or he gathers data and then uses the data to make her or his guess. Probabilities are between 100% (its definitely going to happen) and 0% (forget about it, pal, its not going to happen). Most things have a probability somewhere in between.
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Pseudoscience
Bill Nye The Science Guy - Pseudoscience
Season 4 - Episode 9

Show Description People once thought that world was flat or nearly flat. It was considered a bit crazy to think of it as a big ball. But it is. You can prove it. One of the big ideas in science is that ideas can be tested. Scientists test claims. If one scientist claims that she or he can fill a balloon with invisible gas using vinegar and baking soda, other scientists can try it and see if they get the same result.Sometimes ideas are wild, extraordinary. And, the claims that go with these way-out ideas are pretty extraordinary as well. The round Earth is an example of an extraordinary claim that needed extraordinary proof. But, there are many people, who believe in extraordinary claims without looking for extraordinary proof. We scientists are always on the lookout.
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Flowers
Bill Nye The Science Guy - Flowers
Season 4 - Episode 10

Show Description Flowers are an important part of many plants. Plants use flowers to make other plants to reproduce. Flowers have special parts, called stamens and pistils. When pollen from the stamen finds its way down through the pistil, the flower is pollinated, and seeds start to grow. The seeds eventually find their way to the ground, the seeds sprout, and more plants are born.
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Archaeology
Bill Nye The Science Guy - Archaeology
Season 4 - Episode 11

Show Description Archaeologists are kind of like detectives. Theyre scientists who snoop through old or ancient peoples things to find out what life was like thousands of years ago. Archaeologists find ancient cities, tombs, and temples by taking aerial photographs of Earth, by reading old documents, or by just looking at the shape of the land. When they think theyve found a site, the archaeologists pick up a shovel and start digging. When archaeologists get close to an object, they dig very carefully. Sometimes they dig with nothing but a toothpick and a paintbrush. Whew!
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Deserts
Bill Nye The Science Guy - Deserts
Season 4 - Episode 12

Show Description About 20% of the Earth is a desert. Deserts are places that get very little precipitation (rain or snow) each year, and that makes them extremely dry. Deserts cover big areas of land. The biggest desert, the Sahara, extends from North Africa to Southwest Asia and is 13 times the size of Texas. Some parts of the Sahara get as little as 2 millimeters (0.08 inches) of water a year.
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Amphibians
Bill Nye The Science Guy - Amphibians
Season 4 - Episode 13

Show Description Frogs, toads, salamanders, newts, and caecilians (worm-like animals that have backbones) are all amphibians, animals that spend part of their lives in water and part on land. Amphibians are slimy. Amphibians are cold-blooded that means their body temperature changes with the temperature outside. And as amphibians grow up, they go through metamorphosis.
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Volcanoes
Bill Nye The Science Guy - Volcanoes
Season 4 - Episode 14

Show Description Volcanoes are mountains made from molten rock. The Earths crust is divided into big slabs, called plates, which are slowly moving all the time. The plates are floating on the Earths mantle, a layer of gooey hot rock that flows like maple syrup. Some places in the mantle, the rock gets very hot and nearly liquid. Its called magma. Sometimes the magma reaches the Earths surface and forms a volcano.
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Invertebrates
Bill Nye The Science Guy - Invertebrates
Season 4 - Episode 15

Show Description Worms, squid, clams, and flies are spineless creatures. Theyre not afraid, theyre invertebrates animals that dont have backbones. Invertebrates are everywhere. You can find invertebrates in the sea, in freshwater, and on land. There are about 30 times more invertebrates than vertebrates on Earth.
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Heart
Bill Nye The Science Guy - Heart
Season 4 - Episode 16

Show Description Your heart pumps your blood around your body, all hours, every day of the week, to keep you alive. Your heart is about the size of your fist, and its made of special muscle called cardiac (KAR-dee-ak) muscle.Cardiac muscle lets your heart keep the beat, it can also speed up or slow down, depending on what your body needs. Your heart works like an automatic pump it squeezes, or contracts, and un-squeezes, or relaxes, to push blood through the four different sections of your heart. Valves, special one-way openings, are like little doors between the sections making sure your blood moves in only one direction through your heart, to your lungs, back to your heart, and then around your body again.
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Inventions
Bill Nye The Science Guy - Inventions
Season 4 - Episode 17

Show Description Almost everything around you, from paper clips to computers, was thought of, designed, and built by humans. An invention can be a totally new idea, or an improved variation on something that already exists. Inventors invent to solve problems and make life easier.Anyone can be an inventor, even you. All you need is an idea, and sometimes you dont even need that. Silly Putty, sticky notes, X-rays, pretzels and nylon were all accidents that became great inventions after more research, experimentation, and design.
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Computers
Bill Nye The Science Guy - Computers
Season 4 - Episode 18

Show Description Computers are used throughout the world all the time. Computers are in cars, calculators, televisions youre even using one right now. Humans use computers to take information things like pictures, words, numbers, and sound, and turn it into electricity. The information is changed into a pattern of electrical pulses, a bunch of electricity ons and offs. The computers are designed so that they can tell the difference between pieces of information by the different patterns of ons and offs. Computers change the information you give them, turn it into electrical pulses, make changes to it, and give it back to you in a form you can understand in a matter of thousandths of seconds. Its not the computers, its the electricity that makes computers so fast.
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Fossils
Bill Nye The Science Guy - Fossils
Season 4 - Episode 19

Show Description Most dead animals and plants break up, get decomposed, and become part of the soil, but some turn into fossils. A fossil forms when a plant or animal dies, and gets buried. If conditions are right, water gets into the fossil bed, and chemical reactions preserve the impressions for thousands or millions of years. There are different types of fossils imprints of animals, black carbon outlines, hardened bones, or actual animals and plants that have been trapped in ice or hardened tree sap.
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Time
Bill Nye The Science Guy - Time
Season 4 - Episode 20

Show Description Time affects every living thing on Earth. Trees shed their leaves. Some animals only come out at night. There are even insects that only emerge every 17 years. Days, hours, minutes, and seconds all of these were invented by humans. Humans came up with these units of time to organize their lives and to study the world. One of the first ways humans told time was by noticing the difference between daytime and nighttime. Humans use the Earth revolving around the Sun to divide time into years and seasons. Months are based on the movement of the Moon around the Earth. A day is when the Earth spins completely around its own axis.
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