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Comets, asteroids, and meteoroids

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by

Lauren Page

on 7 October 2014

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Transcript of Comets, asteroids, and meteoroids

Comets-
Comets are icy, and small solar system bodies. Comets are to small to be called plants. When comets pass the sun they heat up and begin produce a gas. The comet spits out the gas, and from the human eye, looks as though the comet has a tail. Comets orbit the sun, and they release the gas as they orbit. Comets contain; dust, ice, carbon dioxide, methane and more. The first comet was discovered by Gottfried Kirch on the 14th of November, 1680. Some scientists think that comets could have originally brought some of the water and organic molecules to Earth that now make up life here on planet Earth.
Asteroids-
Asteroids are metallic, rocky bodies without atmospheres that orbit the Sun, but are too small to be classified as planets. But despise their size, asteroids can be very dangerous. Many have hit the Earth in the past, and will crash into planet Earth in the future. That's one reason scientists study asteroids and are eager to learn more about their numbers, how they orbit and their physical characteristics. In 1801, while making a star map, astronomer Giuseppe Piazza, discovered the first and largest asteroid.
Meteoroids-
If you ever see a small rocky or metallic body traveling through space, you have seen a meteoroid. Meteoroids are even smaller than asteroids, and range in size greatly. Most meteorites are smaller then pebbles! They orbit the sun and they travel at various speeds. Humans have seen and known about meteoroids for thousands of years, because they have hit and landed on earth.
Quiz-
1. What does it look like a comet has coming off of it, after it passes the sun and produces gas?

2. Asteroids are..
A.) Large
B.) Small

3. Meteoroids are smaller than..
A.) golf balls
B.) pebbles
C.) People

4. Who discovered the first meteoroid?
A.) Humans have know about them for thousands of years
B.) Giuseppe Piazza

Comets, asteroids, and meteoroids
By: Lauren Page

Comet Fun Facts-
1. Comets are named after their finders

2. The nucleus of comets in made of ice

3. Comets have two tails: a dust tail and a plasma tail

4. We know a comet could impact Earth and that it is important to understand the nature of comets so we can design better methods to protect ourselves from them should one be on a collision path with Earth.
Asteroid Fun Facts-
1.) Ceres is the largest known asteroid it's approximately 590 miles in diameter. It’s so big that it’s also classified as a dwarf planet.

2.) Once asteroids enter Earth’s atmosphere, they are called meteors, and if they survive to the Earths surface, they are called meteorites.

3.) Asteroids are similar to comets but do not have a visible tail like comets do.
Meteoroid Fun Facts-
1.) Billions of meteoroids fall to earth everyday

2.) When meteoroids hit earth's atmosphere, they burn and become meteors or shooting stars

3.) Did you know that in 2004 a meteoroid measuring almost 10 meters wide hit Earths atmosphere just above Antarctica
Comet pictures
Asteroid pictures-
This picture shows a comet traveling towards earth.
This is a diagram that shows what makes up a comet.
Meteoroid pictures-
Answers-
1. It looks like a comet has a tail coming off of it after it passes the sun.

2. asteroids are extremely small

3. Meteoroids are smaller than pebbles

4. Humans have known about meteoroids for thousand of years.
This is a a diagram of a asteroid
This picture shows a asteroid traveling through space
This is a picture of a meteoroid
This diagram shows what makes up a meteoroid
Full transcript