[2014] Allyson Smith: Solar system

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by GeGe2112
Last updated 4 years ago

Discipline:
Science
Subject:
Planets
Grade:
6

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[2014] Allyson Smith: Solar system

Our Planets

Mercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

Mercury is 4,879 km. in diameter. It has a 0.39 AU distance from the Sun. It doesn't have any moons. Some interesting facts about Mercury is that it take 58.9 days to fully rotate, it is the smallest planet of all 8, and it is one of the inner planets.

Earth is 12,756 km. in diameter. It has a 1.0 AU distance from the Sun. It has only one moon. Things to know about Earth are that it is the only known planet to sustain life, it has enough gravity to hold most gases, and it has water on its surface unlike other planets.

Venus is 12,104 km. in diameter. It has a 0.72 AU distance from the Sun. It has no moons. Some things you may not know about Venus is that it takes 244 days to fully rotate, its period of revolution is 224.7 days, and it has a rocky suface.

Neptune is 49,528 km. in diameter. It has a 30.07 AU distance from the Sun. It has 13 moons. Facts to know about Neptune is that its atmosphere contains visible clouds, it is cold but has a hot interior, and the energy in Neptune left over from its formation rises, producing clouds and storms in its atmosphere.

Uranus is 51,118 km. in diameter. It has a 19.2 AU distance from the Sun. It has 27 moons. Important information to know about Uranus is that it is an outer planet, it s extremely cold, and Uranus's axis of rotation is tilted at an angle of about 90 degrees from the vertical.

Saturn is 120,536 km. in diameter. It has a 9.54 AU distance from the Sun. It has 61 moons. Cool information about Saturn is that it has rings, one of Saturn's moons, Titan, is larger than Mercury, and the rings are chunks of ice and rock.

Mars is 6,794 km. in diameter. It has a 1.52 AU distance from the Sun. It has 2 moons. Some fun facts are that some of Mars has giant volcanoes, scientists believe that water was once on Mars, and Mars is called the " Red Planet ".

Jupiter is 142,984 km. in diameter. I has a 5.20 AU distance from the Sun. It has 63 moons. Fun facts about Jupiter are that is the largest and most massive planet, it has a storm in its atmosphere called " Great Red Spot " ( larger than earth), and the main moons of Jupiter are called Ganymede, Callisto, Lo, and Europa.

Fun FactsWhy can't we send astronauts to Venus, Uranus, Mercury, Mars, Saturn, Jupiter, or Neptune?

We can't send astronauts to Mercury or Venus because they are too hot. We can't send them to Mars because NASA is short of money. Lastly, we can't send them to Uranus, Saturn, Jupiter, or Neptune because there isn't enough ground to land on, they are all too far away, and they contain too much gravity and pressure.


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