Season 3 (1995)

Planets & Moons
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January 14, 1995 • 26m

Each planet is different. They are all different sizes – Pluto’s the smallest, and Jupiter’s the biggest. They come in a variety o...Read more

Pressure
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January 21, 1995 • 26m

When you push something, you’re using pressure. Pressure depends on two things – the power of the push and the area that’s being p...Read more

Plants
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January 28, 1995 • 26m

A plant’s recipe for food has only three main ingredients: sunlight, carbon dioxide, and water. When plants make their food, they ...Read more

Rocks & Soil
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February 3, 1995 • 26m

We live on top of rocks – the Earth’s surface. There are three basic types of rocks — igneous, sedimentary, and metamorphic — and ...Read more

Energy
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February 10, 1995 • 26m

Energy can change forms. Your body changes the energy in food into energy you can use to do things. Dams turn the energy in fallin...Read more

Evolution
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February 17, 1995 • 26m

All living things have genes, which are like little sets of blueprints. Genes have information about the color of your eyes, the s...Read more

Water Cycle
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March 24, 1995 • 26m

About 70% of the Earth’s surface is covered in water, and almost all of that water has been around since the Earth formed billions...Read more

Friction
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March 31, 1995 • 26m

Friction is a force that slows moving things down and turns the moving energy into heat energy. When two things rub together, like...Read more

Germs
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April 7, 1995 • 26m

Don’t panic, but germs are all around you. Germs are bacteria, viruses, protozoa, and fungi, very small one-celled organisms. Your...Read more

Climates
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April 14, 1995 • 26m

There are lots of different climates all over the world. Deserts are warm and dry. Temperate forests are cold and wet. Tropical ra...Read more

Waves
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April 21, 1995 • 26m

Energy, things like light, heat, and sound, moves in waves. You’ve probably seen waves in the ocean, or ripples when you throw a r...Read more

Ocean Life
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April 28, 1995 • 26m

There’s an amazing amount of living things in the ocean. There are fish, sharks, flowers, whales, squid, sea plants, sea anemones,...Read more

Mammals
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September 8, 1995 • 26m

Mammals - They're (sometimes) big, they're hairy, and they're warm-blooded. From human being to moose and from cats to rats, Bill ...Read more

Spinning Things
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September 15, 1995 • 26m

A lot of things spin – bike wheels, footballs, hard disks in your computer, and even the Earth – they’re all twirling around. Spin...Read more

Fish
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September 22, 1995 • 26m

More than 22,000 different species of fish live in the oceans, lakes, and rivers of the world. Fish come in all shapes and sizes. ...Read more

Human Transportation
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September 29, 1995 • 26m

Transportation is all about moving people and their things. You can transport yourself around using your feet, a bike, a car, a tr...Read more

Wetlands
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October 6, 1995 • 26m

Wetlands are not just home to different animals and plants, but they also control flooding and help keep the Earth’s water clean. ...Read more

Birds
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October 13, 1995 • 26m

Scientists believe that birds evolved from reptiles. Birds have backbones, and they lay eggs, but they’ve developed a unique featu...Read more

Populations
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October 20, 1995 • 26m

Populations need a couple of basic things to survive – food and a place to live. When two or more populations of living things are...Read more

Animal Locomotion
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October 27, 1995 • 26m

Some animals have wings that let them fly and hover. Other animals have legs, from two to more than 200, to get them walking, gall...Read more