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Science: Middle School: Grades 6, 7 and 8 Quiz - Solar System 3 (Questions)

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Our Solar System is located in the Milky Way. In the field of Science, our Solar System is considered to be five billion years old. For thousands of years, humanity, with a few notable exceptions, did not recognize the existence of the Solar System. We believed Earth was the center of the universe.

1. The center of our solar system is .......
[ ] Mars
[ ] the Earth
[ ] the Moon
[ ] the Sun
2. What is our solar system a part of?
[ ] Constellation
[ ] Orion
[ ] Mars
[ ] Milky Way
3. How many planets are there in our solar system?
[ ] 7
[ ] 8
[ ] 10
[ ] 11
4. The time it takes the Earth to orbit the Sun is called .......
[ ] 28 days
[ ] a month
[ ] a year
[ ] 10 years
5. We can sometimes see some of the planets because .......
[ ] they are a source of light
[ ] they are luminous
[ ] they reflect light from the Moon
[ ] they reflect light from the Sun
6. How many stars are there in our galaxy?
[ ] Hundreds
[ ] Millions
[ ] Thousands
[ ] Billions
7. Which is the largest planet in our solar system?
[ ] Earth
[ ] Jupiter
[ ] Saturn
[ ] Uranus
8. Which was the first planet known to have rings?
[ ] Jupiter
[ ] Pluto
[ ] Saturn
[ ] Uranus
9. A satellite is .......
[ ] a large object in orbit round a smaller object
[ ] a large object in space
[ ] a small object in orbit round a larger object
[ ] a small object in space
10. Which one do artificial satellites NOT do?
[ ] Collect information
[ ] Remain stationary
[ ] Send TV broadcasts
[ ] Take photographs
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Science: Middle School: Grades 6, 7 and 8 Quiz - Solar System 3 (Answers)
1. The center of our solar system is .......
[ ] Mars
[ ] the Earth
[ ] the Moon
[x] the Sun
The temperature on the surface of the Sun is about 5,500°C
2. What is our solar system a part of?
[ ] Constellation
[ ] Orion
[ ] Mars
[x] Milky Way
3. How many planets are there in our solar system?
[ ] 7
[x] 8
[ ] 10
[ ] 11
Some scientists think that Pluto is a planet, however it was reclassified as a dwarf planet in 2005
4. The time it takes the Earth to orbit the Sun is called .......
[ ] 28 days
[ ] a month
[x] a year
[ ] 10 years
An orbit round the Sun is a path round the Sun
5. We can sometimes see some of the planets because .......
[ ] they are a source of light
[ ] they are luminous
[ ] they reflect light from the Moon
[x] they reflect light from the Sun
6. How many stars are there in our galaxy?
[ ] Hundreds
[ ] Millions
[ ] Thousands
[x] Billions
7. Which is the largest planet in our solar system?
[ ] Earth
[x] Jupiter
[ ] Saturn
[ ] Uranus
More than 1,300 Earths could fit inside it!
8. Which was the first planet known to have rings?
[ ] Jupiter
[ ] Pluto
[x] Saturn
[ ] Uranus
The rings are made up of millions of ice crystals, some as large as houses
9. A satellite is .......
[ ] a large object in orbit round a smaller object
[ ] a large object in space
[x] a small object in orbit round a larger object
[ ] a small object in space
The Moon is a satellite of the Earth
10. Which one do artificial satellites NOT do?
[ ] Collect information
[x] Remain stationary
[ ] Send TV broadcasts
[ ] Take photographs
They can also be used for spying!