Term
| What is Earth's diameter? |
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| What is Earth's distance from the Sun? |
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| What is Earth's composition? |
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| What is Earth's inclination on its axis? |
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| Is Earth an inner or outer planet? |
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| What is Earth's rotation speed? |
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Definition
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| What is Earth's revolution speed? |
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| What is Earth's surface terrain? |
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Definition
| Mountainous with hills, plains and large bodies of water |
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Term
| What is Earth's atmosphere? |
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Definition
| Earth has 5 layers of atmosphere. The lowest is the troposphere, which is the layer that provides most of our weather. It contains about four-fifths of the Earth's air, but extends only to a height of about 11 miles (17 kilometers) at the Equator and somewhat less at the Poles. |
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| How is Earth unique from all other planets? |
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Definition
| Earth is the only planet known to be able to sustain life. |
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| Where is the hottest spot on Earth? |
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Definition
| El Azizia, Libya, where the record high temperature hit 136 degrees Fahrenheit |
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| What is the coldest spot on Earth? |
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Definition
| Antarctica, the lowest temperature ever recorded is minus 128.6 degrees Fahrenheit. |
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Term
| Why does Earth have a magnetic field? |
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Definition
| Earth has a magnetic field because of the ocean of hot, liquid metal that sloshes around its solid iron core. This flow of liquid creates electric currents, which, in turn, generate the magnetic field. |
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