Name Use your parent signature to answer questions 1 through 33



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Use your parent signature to answer questions 1 through 33.



  1. Name the 8 planets in order from the sun.



  1. What force brings all objects to the ground when you drop them?

  2. Which has more gravity Jupiter or mercury?

  3. Which is larger Jupiter or the sun?

  4. Which planet is the third brightest object in the sky?

  5. Which planet has the largest diameter?

  6. Which planet has the smallest diameter?

  7. Which is the only planet capable of supporting life?

  8. What do planets orbit?

  9. What do moons orbit?

  10. Which planet is closest in size to Earth?

  11. Which planet is the coldest?

  12. Which planet takes the most amount of time to orbit the sun?

  13. Which planet takes the least amount of time to orbit the sun?

  14. Which planet is blue?

  15. How long does it take for the moon to orbit the earth?

  16. How long does it take for the moon to spin on its axis?

  17. How long does it take for the earth to revolve around the sun?

  18. How logn does it take for the earth to spin on its axis?

  19. What are saturn’s rings made of?

  20. What is the red spot?

  21. Which planet is the red spot on?

  22. Which planet was found mathematically?

  23. Which planet is the smallest?

  24. Which planet is the largest?

  25. Which planet is tilted on its side?

  26. Name the four gas giants?

  27. Name the four terrestrial planets

  28. Which planets have rings?

  29. Which planet is the hottest?

  30. Which planet has no atmosphere?

  31. Which planet has water, ice, and water vapor on it?

  32. Where is the asteroid belt located?

Name_______________________________________________

Milky way galaxy

We live in the milky way galaxy. The milky way galaxy is one of AT LEAST 100 billion galaxies. As humans we have been able to spot 100 billion different galaxies with our different telescopes. Remember telescopes tell us more about space and the universe than any other scientific tool.

macintosh hd - 1:users:calebhumphreys:desktop:screen shot 2015-02-24 at 10.13.34 am.png

The Milky Way Galaxy is an immense and very interesting place. Not only does it measure some 100,000–120,000 light-years in diameter, it is home to planet Earth, the birthplace of humanity. Our Solar System resides roughly 27,000 light-years away from the Galactic Center, on the inner edge of one of the spiral-shaped concentrations of gas and dust particles called the Orion Arm.

But within these facts about the Milky Way lie some additional tidbits of information, all of which are sure to impress and inspire. Here are ten such facts, listed in no particular order:

1. It’s warped. 
For starters, the Milky Way is a disk about 120,000 light years across with a central bulge that has a diameter of 12,000 light years. The disk is far from perfectly flat though, as can be seen in the picture below. In fact, it is warped in shape, a fact which astronomers attribute to the our galaxy’s two neighbors -the Large and Small Magellanic clouds.

These two dwarf galaxies — which are part of our “Local Group” of galaxies and may be orbiting the Milky Way — are believed to have been pulling on the dark matter in our galaxy like in a game of galactic tug-of-war.The two megallanic clouds have a huge amount of gravity. They stretch our galaxy by pulling it in two opposite directions with their immense gravity. Here is our galaxy from a different point of view.

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Another crazy fact – If we would start traveling directly out of our galaxy. By the time we reached a new galaxy we would look like an entirely different species by that point because of evolution.

Scientists believe that 90% of our galaxy’s mass consists of dark matter, which gives it a mysterious halo. That means that all of the “luminous matter” – i.e. that which we can see with the naked eye or a telescopes – makes up less than 10% of the mass of the Milky Way.

3. It has over 200 billion stars
. As galaxies go, the Milky Way is in middle when it comes to size. It is not small and it is not large compared to other galaxies. The largest galaxy we know of, which is designated IC 1101, has over 100 trillion stars. Our neighbor galaxy called the megalonic cloud has only 10 billion stars. It is considered a dwarf galaxy because it is small. Our galaxy is constantly creating new stars in nebulas and losing stars due to stars dying in a supernova.

4. Most of our galaxy is made of dust and gas

5. Our galaxy was made from other galaxies. 
The Milky Way wasn’t always as it is today – a beautiful, warped spiral. It became its current size and shape by eating up other galaxies, and is still doing so today. In fact, the Canis Major Dwarf Galaxy is the closest galaxy to the Milky Way because its stars are currently being added to the Milky Way’s disk. And our galaxy has consumed others in its long history, such as the Sagittarius Dwarf Galaxy.

6. Every picture you’ve seen of the Milky Way from above is either another galaxy or an artist’s interpretation.
Currently, we can’t take a picture of the Milky Way from above. This is due to the fact that we are inside the galactic disk, about 26,000 light years from the galactic center. It would be like trying to take a picture of your own house from the inside. This means that any of the beautiful pictures you’ve ever seen of a spiral galaxy that is supposedly the Milky Way is either a picture of another spiral galaxy, or the rendering of a talented artist.

macintosh hd - 1:users:calebhumphreys:desktop:screen shot 2015-02-24 at 10.30.07 am.png

7. There is a black hole at the center.
Most larger galaxies have a supermassive black hole (SMBH) at the center, and the Milky Way is no exception. The center of our galaxy is called Sagittarius A*, a massive source of radio waves that is believed to be a black hole that measures 22,500 kilometers (14 million miles) across – about the size of Mercury’s orbit. But this is just the black hole itself.

All of the mass trying to get into the black hole – called the accretion disk – forms a disk that has 4.6 million times the mass of our Sun and would fit inside the orbit of the Earth.

8. 8. It’s almost as old as the Universe itself.
The most recent estimates place the age of the Universe at about 13.7 billion years. Our Milky Way has been around for about 13.6 billion of those years, give or take another 800 million. The oldest stars in our the Milky Way are found in globular clusters, and the age of our galaxy is determined by measuring the age of these stars,

9. It’s part of the Virgo Supercluster, a group of galaxies within 150 million light years.
 As big as it is, the Milky Way is part of an even larger galactic structures. Our closest neighbors include the Large and Small Magellanic Clouds, and the Andromeda Galaxy – the closest spiral galaxy to the Milky Way. Along with some 50 other galaxies, the Milky Way and its immediate surroundings make up a cluster known as the Local Group.

And yet, this is still just a small fraction of our stellar neighborhood. Father out, we find that the Milky Way is part of an even larger grouping of galaxies known as the Virgo Supercluster. Superclusters are groupings of galaxies on very large scales that measure in the hundreds of millions of light years in diameter. In the case of the Virgo Supercluster, at least 100 galaxy groups and clusters are located within it

10. It’s on the move
The Milky Way, along with everything else in the Universe, is moving through space. The milky way is still moving very fast because of the force of the big bang.

11. Our galaxy will collide with another in 4 billion years –

The Andromeda–Milky Way collision is a galactic collision predicted to occur in about 4 billion years between the two largest galaxies in the Local Group—the Milky Way (which contains our Solar System and Earth) and the Andromeda Galaxy[1][2][3] although the stars involved are sufficiently far apart that it is not likely that any of them will individually collide. Both the Andromeda galaxy and the Milky way have a large black hole at the center of their universe. The Andromeda galaxy is five times as big as our milky way galaxy. Our galaxy will become a part of the Andromeda galaxy in 4 billion years. Eventually our black holes will collide. The earth might be destroyed in this process. It is possible the earth will be brought near the black holes or flung far out in space away from them. Either way it could affect whether the earth will live or die. The milky way galaxy has already collided with smaller galaxies in the past.

12. By the time the two galaxies collide, the earth might have already been eaten up by our sun when it begins to die.



  1. which galaxy do we live in?

  2. How many galaxies do we know exist?

  3. Which tool has been the most helpful in teaching us new things about the universe?

  4. How far does the milky way galaxy measure?

  5. How far away from the center of the galaxy is our solar system?

  6. Is the milky way perfectly flat?

  7. What are the milky way’s two neighbors called?

1.

2.


  1. What force pulls our galaxy towards the two megallonic clouds?

  2. If we started traveling towards another galaxy by the time we reached another galaxy what would we look like?

  3. How much of our galaxy is dark matter?

  4. How many stars are in our galaxy?

  5. Is the milky way considered large or small compared to other galaxies?

  6. Which galaxy is the largest that we know of?

  7. How many stars are thought to be in the largest galaxy?

  8. How many stars does our neighbor the megalonic cloud have?

  9. Is our galaxy constantly creating new stars?

  10. Are stars dying constantly?

  11. Most of our galaxy is made of what?

  12. How was our galaxy made?

  13. Does our galaxy eat other galaxies?

  14. Name one galaxy the milky way has consumed?

  15. Have we ever taken a picture of the whole galaxy from the outside?

  16. What is at the center of our galaxy?

  17. What is the center of our galaxy called?

  18. How big is the blackhole at the center of our galaxy?

  19. Which is larger the sun or the black hole at the center of our universe?

  20. How old is the universe believed to be?

  21. How old is our galaxy?

  22. How is the age of our galaxy determined by scientists?

  23. Which supercluster is our galaxy a part of?

  24. What is a supercluster of galaxies?

  25. What is the closest spiral galaxy to the milky way?

  26. How many galaxy groups are in the Virgo supercluster?

  27. What will happen to our galaxy in 4 billion years?

  28. Will any of our stars collide with the stars of the Andromeda galaxy?

  29. How much bigger is the Andromeda galaxy than the milky way?

  30. What will happen to our black holes when the galaxies collide?

  31. Has the milky way galaxy ever collided with a different galaxy?

  32. What is the twelfth fact in our article?


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