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during walking on earth at 1.0 g of gravity 

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during walking on earth at 1.0 g of gravity 

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What’s the difference between dirt and soil? How about between weathering and erosion? Tim digs for answers in this movie about the earth on Earth!

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BrainPOP - Animated Educational Site for Kids - Science, Social Studies, English, Math, Arts & Music, Health, and Technology

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BrainPOP - Animated Educational Site for Kids - Science, Social Studies, English, Math, Arts & Music, Health, and Technology

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Serving more than 5 million educators and 51 million students, available in approximately half of U.S. classrooms and primary schools in the U.K., and more than 90 countries around the globe.

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Digital Textbooks & Education Resources | Discovery Education

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Serving more than 5 million educators and 51 million students, available in approximately half of U.S. classrooms and primary schools in the U.K., and more than 90 countries around the globe.

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Welcome to Underground Adventure! Here you'll take a Virtual Tour of the exhibition at The Field Museum and learn all about the amazing world beneath your feet. What's so amazing, you ask? Well, for starters:

Without soil, there would be no jeans.
That's right! Jeans are made of cotton denim stitched together with cotton thread. Their blue color comes from indigo dye. Cotton and indigo come from plants that need soil to grow.

Without soil, we would have no aluminum cans.
Aluminum starts out locked inside the soil, in an ore called bauxite. Aluminum can also be recycled to make new aluminum products, like cooking pots, airplanes, or new cans.

Without soil, we'd have no penicillin.
Penicillin is a natural bacteria-killer that's made by a mold that grows in soil. Thousands of lives are saved each year by penicillin and other medicines that were discovered in soil organisms.

Without soil, we couldn't even eat breakfast!
Everything from the wheat in cereal to the oranges in orange juice to the animal proteins in milk, bacon, and eggs were nourished by the soil and what grows in it. Even a ceramic plate is made of a type of soil. No soil, no breakfast and no plates from which to eat.

Want to learn more? Get started on your Underground Adventure Virtual Tour! You'll never look at soil the same way again!

Helpful Hints

The Virtual Tour will appear in a pop-up window. Make sure you set your web browser to enable pop-ups so you can take the quiz!

You will need the current version of Flash to take the tour.
You can download it for free here.

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The Field Museum | Underground Adventure - Virtual Tour

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Welcome to Underground Adventure! Here you'll take a Virtual Tour of the exhibition at The Field Museum and learn all about the amazing world beneath your feet. What's so amazing, you ask? Well, for starters: Without soil, there would be no jeans. That's right! Jeans are made of cotton denim stitched together with cotton thread.

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Soil: StudyJams! Science | Scholastic.com

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This activity will teach students all about the different layers that comprise soil, and how these layers affect the way plants grow.

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BBC - KS2 Bitesize Science - Rocks and soils : Play

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Science materials exercise - Rocks and soils activity

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The Rock Cycle: StudyJams! Science | Scholastic.com

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Like water, rocks, too, have their own cycle. This activity will teach students about the rock cycle and the process of change that rocks undergo.

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Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds.

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Javascript must be enabled to view our earthquake maps. To access USGS earthquake information without using javascript, use our Magnitude 2.5+ Earthquakes, Past Day ATOM Feed or our other earthquake feeds.

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BrainPOP - Animated Educational Site for Kids - Science, Social Studies, English, Math, Arts & Music, Health, and Technology

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BrainPOP - Animated Educational Site for Kids - Science, Social Studies, English, Math, Arts & Music, Health, and Technology

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BrainPOP - Animated Educational Site for Kids - Science, Social Studies, English, Math, Arts & Music, Health, and Technology

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BrainPOP - Animated Educational Site for Kids - Science, Social Studies, English, Math, Arts & Music, Health, and Technology

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Quia - Science SOL 5.7 The Earth's Layers

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How Do We Know?

If scientists have never studied any materials from a depth below 7 miles (11km), then how is it that we know what is in the center of the Earth? How can we know what the core of the Earth is made of, if we have never seen it?

The answer is actually quite simple. While it is true that we cannot study the Earth's core using visible light, we can study it using other senses. The most important thing we use to sense the Earth's core are seismic waves. Seismic waves are waves of energy caused either by earthquakes or by massive man-made explosions.

Scientists are able to measure these waves as they pass through the Earth. As these waves encounter different materials, they change in important ways, becoming longer, shorter, faster, or slower. Geologists study these changes in the waves, and are able to draw conclusions about what the core of the Earth must look like.

Geologists also can learn a lot about the core of our planet by looking at Earth's magnetic field. The Magnetic field is created by massive circulations of hot liquid mantle beneath the Earth's surface.

These clues lead geologists to believe that the Earth is made of four distinct layers. These layers are the crust, the mantle, the outer core, and the inner core.

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The Earth's Crust, Mantle, and Core - Geology for Kids

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How Do We Know? If scientists have never studied any materials from a depth below 7 miles (11km), then how is it that we know what is in the center of the Earth? How can we know what the core of the Earth is made of, if we have never seen it?