There are eight planets and one dwarf planet in our solar system. Our sun is at the center of our...
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![Page 1: There are eight planets and one dwarf planet in our solar system. Our sun is at the center of our solar system. A way to remember the order of the.](https://reader038.fdocuments.in/reader038/viewer/2022110210/56649e655503460f94b6016e/html5/thumbnails/1.jpg)
There are eight planets and one dwarf planet in our solar system.
Our sun is at the center of our solar system.
A way to remember the order of the planets is “My Very Excited Mother Just Sent Us Nine Pizzas.”
Solar Systemby Alexa Sitzer
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Our sun is actually a star.
The sun is extremely hot, on its surface and in its core.
Sun
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• Mercury is the closest planet to the sun.
• Earth’s moon is the same size as Mercury.
• Also, Mercury is covered in craters.
Mercury
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o Venus is very close to the same size as the earth. It is sometimes called the earth’s “sister planet” because of this.
o Another fact about Venus is that it’s the second farthest planet from the sun.
Venus
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Earth is the only planet to support life that we know of.
The earth has 4 layers : its crust, its mantle, its outer core, and its inner core.
Earth is about 70% covered in water.
EARTH
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Mars is sometimes called the Red Planet because it looks red from Earth.
Mars has huge dust storms that can last for many months.
Mars
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o The asteroid belt goes between Mars and Jupiter.
o Asteroids are similar to rocks, but are out in space.
Asteroid Belt
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Jupiter is the largest planet in our solar system.
Jupiter has at least 63 moons.
For over 300 years, a storm similar to a hurricane has stayed on Jupiter. This is called the Great Red Spot.
Jupiter
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• Saturn has rings made of dust, ice, and rock.
• It has at least about 31 moons.
• We do not know of any solid surface on Saturn.
Saturn
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Uranus is called a gas giant.
Unlike any other planet in our solar system, Uranus rotates on its side.
Uranus has around 27 moons.
Uranus
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Neptune is a very windy planet.
It has somewhere around 13 moons.
Hydrogen and helium make up Neptune.
Neptune
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At first, Pluto was called a real planet. In 2006, it was no longer considered a planet, but was a dwarf planet.
Pluto was first seen through a telescope in 1930.
Also, it takes Pluto 248 and one half Earth years to orbit the sun.
In 2005, NASA sent a spacecraft with no people on it to Pluto, but it will not reach Pluto until 2015.
PLUTO
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Comets are balls of rock, ice, and frozen gases.
A few comets, such as Halley’s comet, sometimes become famous because their orbit brings them close to Earth.
This is a picture of Halley’s comet.
COMETS
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o A galaxy is an extremely large system of gases, dust, and several stars.
o The galaxy that our solar system is in is called the Milky Way.
Galaxy
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• Constellations are groups of stars that make up imaginary pictures in the sky.
• The Big Dipper constellation is part of a bigger group of stars called the Ursa Major, which means “Big Bear.”
Ursa Major
Constellations
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Stars are huge balls of superheated gases.
Our sun is an average-sized yellow star.
The color of a star tells us how hot it is, with red being the coolest and blue being the hottest. Yellow is somewhere in the middle.
Stars