astronomy presentation.pptx222

Astronomy presentation Noah Reagan

Ms. Matthews 10/4/12

The sun

The sun is the center of our solar system. The sun is a medium sized star but looks

huge to us. The sun is medium hot and looks yellowish

the cores temp on the sum is 27,000,000 degrees .

The sun was made by a super nebula about 4.6 billion years ago.

The sun is made of two gases named hydrogen and helium.

The eight planets of our solar system

mercury

First is mercury is the smallest planet and has very little atmosphere.

It is very hot and mostly made of rocks. Mercury has no moons.

Venus

Venus has a very thick atmosphere it is the hottest planet due to its clouds of carbondioxside.

Venus has no moons and is about the same size of earth.

Earth

Earth is our home planet. It is the 3rd planet from the sun. It has water in every form. It has a medium thick atmosphere. It has one moon its name is Luna.

MARS

Mars is the fourth planet from the sun. It is called the god of war because of its red color. Mars has been known since prehistoric times. It has been studied a lot for ground based research. It has two moons. The major moons are named phobos, and Deimos.

Jupiter

Jupiter is the fifth planet from the sun. It is the biggest planet. It has rings and has 63 moons. Has a great red spot from winds and has very strong winds. It has been there since Galileo saw it 400 years ago. The major moons are named Io, Europa, Ganymede, and Callisto.

Saturn

Is the sixth planet from the sun. it is a gases planet. It is also famous for its rings. It has 56 moons. The major moons are named titan, and rhea.

Uranus

Uranus is also a gases planet. It spins sideways because it was probably hit by a comet or asteroid. It has thin rings and has 27 moons. The major moons are called cordelia, and Ophelia.

Neptune

Is the farthest planet from the sun. is a gases planet. It has very strong winds over 400 miles an hour. it has 13 moons and is said to bee the twin of Uranus. The major moon is called triton.

Facts about space

All four of the outer planets are gases planets.

The moon makes the tides of the ocean on earth.

Between mars and Jupiter there is a asteroid belt.

Light years

Light years is a special unit of measurement to measure the distance between stars, galaxies, and planets. It was made because no other measurement could measure space and the distance from each planet, star, or galaxy.

Mass

The mass of an object is a fundamental property of the object; a numerical measure of its inertia; a fundamental measure of the amount of matter in the object.

Gravity

Gravity is the force between two objects exp (earth and us). Gravity keeps us from flying away. It keeps us on the ground. It also is the reason stuff falls it has a strong enough force to not let us leave the ground. When you jump gravity pulls you back down. Gravity is the force from the planets surface to us. The sun has gravity but it is to far away to notice.

Tools used for space

Tools are a important part for exploring space we used rovers to go to planets that are to far away to go to. We use a telescope to get pictures of space and see the planets. We used rockets to get to the moon and back several times. We lunched satellites in space to tell the weather and take pictures also. We have to use tools for space.