Not all planet cores are the same. Scientists have inferred that Mercury's core is like Earth's. It is an iron/nickel combination of heavy metals. It is believed that Venus has a core similar to Earth's as well. Mars is a smaller planet and scientists believe the core has cooled, yet is made up of the same metals; iron and nickel. The next rocky celestial object nearest to us is the dwarf planet Pluto, and scientists don't have enough information on Pluto to even make a guess at what is inside Pluto's core. This is scientists' best guess about Pluto. What about the gas giants? They are made of gas, aren't they? All four jovian planet cores are similar in composition. Each consists of a mixture of rock, metal and hydrogen materials. Their differences stem from having captured different amounts of additional hydrogen and helium gas from the solar nebula. Jupiter captured so much that it ended up with 300 times Earth's mass. The jovian planets get their heat from the Sun and from their interiors. Jupiter creates a lot of internal heat and releases this heat by emitting thermal radiation. In fact, Jupiter creates so much internal heat that it emits almost twice as much energy as it receives from the Sun. The only reasonable explanation is that Jupiter is still slowly shrinking, almost as though it has not quite finished forming. Saturn and Neptune also appear to be emitting more energy than they receive from the Sun. While we are certain Saturn is not still shrinking, it seems clear that Neptune is still shrinking. Uranus is the only jovian planet not emitting excess internal energy. This information makes a good scientific base towards more tests using the scientific method. The more questions scientists come up with as they observe conflicting information, the better their tests become to really find out what is inside the planets in our solar system. News just in: Researchers have found that the Earth's inner core has an interior structure of its own made of iron crystals that point in different directions, as can be seen marked by the blue lines in the diagram below. What does this mean? Scientists discovered a distinct inner inner core that is about half the diameter of what was believed to be the solid inner core, which is about the size of the moon. But, what does this mean?? The findings could mean that our understanding of Earth's interior, and its history, will need to be rewritten.
Scientists found that seismic waves that passed through the very center of the planet showed interference very different from those that traveled through the rest of the core. They also found that the iron crystals in the inner-most core may also have very different crystal structures, meaning they have different properties. Read more: http://www.dailymail.co.uk/sciencetech/article-2946138/Journey-centre-Earth-Scientists-planet-s-inner-core-core-own.html#ixzz4yckTGxMD You read it first, on your 6th grade science blog!
12 Comments
Mooasus/Sammy
11/16/2017 03:11:58 pm
Yay, I’m first finally!!! Hehehe😏😏
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Mooasus/Sammy
11/16/2017 03:13:53 pm
Mrs. Taylor good job on the blog today!!! You’re really good at it!!!😜
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Elayna
11/16/2017 03:28:49 pm
I love learning about planets Mrs Taylor!
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Ally B.
11/16/2017 05:20:13 pm
Good job 👏 on the blog Mrs.Taylor your super good @ it. I was so fascinated today about the journal 📓 prompt I love ❤️ learning about what’s inside the planets 🌍 it so interesting how some of the planets are the same sizes but yet we all have something different about our core.
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Ally B.
11/16/2017 05:23:43 pm
I’m also super exited about making our clay models tomarrow because it seems so fun.
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Moosey/pinkpegallamacorn dancing on rainbows ?☁️?☁️☁️☁️☁️???☔️☔️?ben
11/16/2017 05:35:29 pm
So I don’t really have time for I long comment but I still have a ton of my birthday stuff still here and I just got 20 dollars and a tie it is a amazing but I have to go now
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Luke
11/16/2017 06:45:56 pm
Jupiter and Neptune are Shrinking!!!???? thats weird 🤪🤪🤯🤯🤔🤔🦄🦄
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Sadie
11/17/2017 08:53:38 am
Good job on the blog today Mrs. Taylor! I forgot to comment yesterday so I am doing it today.
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Addy/unicorn
11/17/2017 08:54:09 am
When I saw the people standing up and clapping at the end i thought that, that worked awesome because that blog it funny 😄 aspecally the pic of the stuffed animal spinning
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Harmony
11/17/2017 08:58:07 am
Great Job today Mrs. Taylor. I like the pictures.
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/ponkpegallamacorn/ben
11/17/2017 12:54:21 pm
So I still don’t have time for a long comment but I m kinda stealing Sammy’s name and the pinkpegallama corn was already my thing so I am not stealing that also if enyone steals pinkpegallama for I will pound them to pulp I’m spurious I’m obsessed white llamas bye
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Madeleine
11/17/2017 01:50:31 pm
great job on the blog Mrs.Taylor! i never thought of what was inside of the other planets
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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 |