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Bio Grade 8
Test Description: Bio grade 8
Instructions: Answer all questions to get your test result.
1) Mercury orbits
A
Sun 88 days
B
All
C
A 59 days
D
-
2) Venus
A
A 243 days
B
None
C
All
D
Sun 255 days
3) Mars orbit
A
Sun 687 days
B
A 24.5 hours
C
-
D
All
4) Jupiter orbits
A
a 9.8 hours
B
-
C
All
D
Sun 12 years 45 000 km/h
5) Saturn orbit
A
-
B
Sun 29.4 years
C
A 15 hours
D
All
6) Uranus orbit
A
A 16 hours
B
Sun 84 years
C
-
D
All
7) Neptune Orbit
A
A 17 hours
B
Sun 165 years
C
All
D
-
8) What is our milky way galaxy
A
Gas and dust held together by gravity
B
A galaxy of massive collections of stars
C
All
D
About 200 billion stars
9) How does the earth travel
A
All
B
-
C
The sun and our entire solar system travels around the centre of the milky wag galaxy
D
Around the sun
10) How long does it take the sun to orbit the galaxy
A
-
B
230 million years
C
100 years
D
225 million years
11) How many globular clusters does the milky way have
A
none
B
estimated 160
C
-
D
estimated 130
12) Is the sun our closest star
A
Maybe
B
False
C
No
D
True
13) What is a group of stars called
A
A constellation
B
A collection
C
A group
D
None
14) What is famous constellation that is visible
A
None
B
The shooting star
C
The belt
D
The Southern cross or Crux
15) What are the 2 main stars of the system called
A
None
B
Centarui A
C
Alpha Centarui B
D
All
16) What is a smaller fainter star called
A
All
B
Proxima Centauri
C
Pluto
D
None
17) How far is the moon away
A
About 285 500
B
About 150 000
C
About 384 500 km
D
About 384 400 km away
18) How a far is the sun away
A
Closet to Pluto
B
All
C
About 150 million km away
D
None
19) What is the formula for travelling
A
Time = distance / speed
B
All
C
Speed = Time / Distance
D
Distance = Speed / Time
20) For distance in the solar system, what do astronomers use
A
Light minutes
B
All
C
None
D
Light hours
*select an answer for all questions
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