Our Solar SystemBy : Christa Eberlin

Our solar system is really big.

There are 8 planets and 1 dwarf planet.

Our galaxy is the Milky Way.

The Sun

Our sun is the biggest star in our galaxy.

You can’t look straight at the sun without hurting your eyes.

The sun is very bright.

Mercury

Mercury is about the size of the Earth’s moon.

Mercury is the closest planet to the sun.

It is still 58 million kilometers away from the sun.

Venus

Venus is about the same size as Earth.

It is the third brightest object in Earth’s sky.

Only the sun and the moon appear brighter.

Earth

Earth is the planet we live on.

Earth is also the only planet that has living people on it.

Earth is the biggest inner planet.

Mars

Mars is called the red planet because it is a fiery red color.

Mars is small.

The diameter is half of Earths.

Asteroid Belt

The asteroid belt is made of tiny little rocks.

The asteroid belt is in the middle of the inner and outer planets.

It is really big.

Jupiter

Jupiter is the largest planet in our solar system.

The diameter of Jupiter is 11times more than earths.

For 300 years there’s been a hurricane on Jupiter that is called the great red spot.

Saturn

Saturn has rings that are visible from Earth.

Saturn is similar to Jupiter but much smaller.

It spins fast in space.

Uranus

Uranus is a gas planet.

Uranus rotates on its side and orbits the sun.

Uranus has at least 27 moons.

Neptune

Neptune's atmosphere is mainly hydrogen and helium.

It is one of the windiest places in our solar system.

The wind speed can reach to 2000 kilometers per hour.

The Dwarf Planet Pluto

Pluto is the smallest planet in our solar system.

Tiny Pluto has a rocky surface.

Pluto is not a planet anymore. It is a dwarf planet.

Galaxy

A galaxy is a huge system of gases, dust, and stars.

We live in a galaxy called the Milky Way.

A galaxy can have planets.

Telescope A telescope is an

object you can see out of.

It is used to see far away.

Scientists use telescopes to see in space.

You will need a special telescope to see in space.

Stars

Stars are huge bright things in the sky.

There is about billions of stars in the sky.

Stars only come out at night.

Constellation

Constellation is a pattern of stars

People use constellation for landmarks.

For many years sailors used constellation to find their way.

Universe

A universe is everything that exist in space.

There is millions of galaxies in the universe.

The universe is a big place.

Inner Planets

There are 4 inner planets.

Inner planets are the ones that are before the asteroid belt.

The 4 inner planets are Mercury, Venus, Mars, and Earth.

Outer Planets

There are 4 outer planets.

Outer planets are the planets on the other side of the asteroid belt.

The 4 outer planets are Jupiter, Saturn, Uranus, and Neptune.

Axis

A axis is a imaginary line that goes through a planet.

Earth has a axis.

The axis in Earth is tilted and the tilt causes the 4 seasons.

Comets

Comets are a ball of ice, gases, and rock.

Some comets, like Halley’s comet become well known because their orbits bring them close to Earth.

Moon Phases

There are many kinds of moon phases.

There are 10 moon phases.

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