WorksheetsSolar System Formation
Total questions: 12
Worksheet time: 3hrs 45mins
Name
Class
Date
1.
How old is our solar system?
a)
4.6 billion years
b)
13.8 billion years
c)
6,000 years
d)
15,000 years
2.
A celestial cloud of dust and gas is called . . .
a)
nebula
b)
supernova
c)
accretion disc
d)
bombardment
3.
A massive explosion of a star is called . . .
a)
supernova
b)
nebula
c)
pulsar
d)
black hole
4.
What caused the solar nebula to contract and spin?
a)
a supernova
b)
an asteroid impact
c)
radiation
d)
random motion
5.
What celestial body eventually evolved into our modern solar system?
a)
a nebula
b)
a supernova
c)
a quasar
d)
a galaxy
6.
When the solar nebula spun out into a disc-shape, what direction did it start spinning?
a)
clockwise
b)
counter-clockwise
7.
Smaller particles collecting together into larger and larger objects is called . . .
a)
accretion
b)
contraction
c)
explosion
d)
rotation
8.
Does the gravity of planets cause them to migrate slowly over time?
a)
Yes, the planets have changed positions
b)
No, the planets stayed where they formed
c)
Yes, and they are STILL moving!
d)
No, planets are too big to move
9.
When the inner planets (and moons) were bombarded by asteroids, what did the asteroids leave behind?
a)
craters
b)
calderas
c)
mountains
d)
valleys
10.
Why is Mercury covered with craters, but Earth is not?
a)
Earth's atmosphere protects and weathers
b)
Earth's moon blocks asteroids
c)
asteroids just missed Earth
d)
most asteroids land in Earth's oceans
11.
The period of heavy bombardment is over, but are asteroid impacts still a danger?
a)
Yes, and we don't have a solution to stop them!
b)
No, they all burn up in the atmosphere
c)
No, because we can blow them up with nukes
d)
only if Jupiter's orbit shifts again
12.
When you spin any mass, what shape will it likely take?
a)
Sphere
b)
Disc
c)
Cylinder
d)
Cloud
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