Before technology most people believed the Earth was round, like a ball. It is round, but squished. The equator bulges out and the poles look flattened. It's round enough, but not perfectly round. Astronomers call this an "oblate spheroid" shape. The poles are flattened slightly and the equator bulges slightly. I know, this seems kind of picky because the Earth still looks very round! But with technology today, scientists can measure the shapes of many celestial objects. Technology allows us to know Earth's mass... The Earth's mass is 13,190, 000,000,000,000,000,000,000 pounds or 5.9 sextillion tons. Another unique feature of the shape of the Earth is the atmosphere. To us it looks like it goes on forever, but the atmosphere clings to Earth kind of like an onion skin. Again, technology has been able to capture what Earth's atmosphere looks like. The air in the atmosphere keeps getting thinner and thinner the greatest distance from the Earth. About 300 miles above the Earth satellites and spacecraft don't feel any wind or resistance at all. Air molecules are spread so far apart that humans can't breath at that height. The atmosphere, though thin, can protect us from "space stuff" that gets pulled into the Earth because of Earth's gravity.
The Earth is a perfect place for all living things. Because there are so many inquiring minds on Earth, scientists, biologists, astronomers, they keep asking questions and trying to solve the mystery...are we the only planet that has life on it, in the solar system? That's the big question...
14 Comments
Jackson Baird
9/26/2018 03:30:47 pm
I really like this blog.
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Aaron
9/26/2018 03:39:22 pm
wow the earth is really fat
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danny
9/26/2018 04:00:49 pm
aaron is right the earth is super fat fatter than my uncle
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ian
9/26/2018 04:07:10 pm
the earth actually weighs 13,190, 000,000,000,000,000,000,000.1 pounds (͠≖ ͜ʖ͠≖)
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Zach
9/26/2018 04:09:49 pm
I think the picture are really funny :)
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ANDREW MILLER
9/26/2018 06:06:25 pm
bad s grammer's
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Ryker Bement
9/26/2018 04:36:34 pm
I never knew that the Earth weighed so much.
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ANDREW MILLER
9/26/2018 06:05:37 pm
in a solar eclipse the moon is in front of the earth so we can only see the out line of the sun. You need special eye protection.
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Keanna
9/26/2018 06:07:37 pm
Wow how did they find out how much the earth weighed that's actually really cool. Also the poles are flattened and the the equator is a bit bulged? Does that mean the earth is kinda ovalish?
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OLIVER ROPER
9/26/2018 06:16:50 pm
I think that the earth will not way that much in a few years because we are sending rockets in to space and we don't use half of the rocket so we shooting part of the earth into space so the earth will soon weigh 12,190,000,000,000,000,000,000,001
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italia
9/26/2018 06:22:13 pm
that's a lot of pounds ;)
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Marcus Besaw
9/26/2018 07:14:21 pm
The earth weighs a ton!!! Even more than Dannys uncle!
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Alice
9/26/2018 09:08:12 pm
The earth weighs so much it is unbelievable.
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ANDREW MILLER
9/27/2018 07:35:55 am
no one is fater then the earth
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Mrs. TaylorI love science! Everything about the world is interesting and never boring. I love to study plants, animals, insects, and people. My favorite subjects are my students who are the most unique organisms on the planet! Categories |