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Earth's Early History Review

Total questions: 33

Worksheet time: 17mins

Name
Class
Date
1.
Hydrogen and Helium are the two lightest elements in the periodic table of elements. What fraction of mass in the in the known universe is made up of Hydrogen and Helium
a)
98%
b)
100%
c)
1%
d)
50%
e)
2%
2.
A flat, rotating disk of gas and dust surrounding a condensed mass, such as a young stellar object or a forming planet
a)
Terrestrial planet
b)
Forst line
c)
Planetismals
d)
Accretion Disk
3.
A large cloud of dust and gas in space
a)
Nebula
b)
Protostar
c)
Planetismal
d)
Jovian Planet
4.
A gas giant planet, examples of which: in our solar system include Saturn, Neptune, and Jupiter
a)
Jovian Planets
b)
Terresital Planets
c)
Nebulas
d)
Protoplanets
5.
Period of solar system formation during which planetesimals collided with other objects
a)
gravitational collapse
b)
heavy bombardment
c)
planetary accretion
d)
protostar formation
6.
The boundary in the solar nebula within which compounds such as water and ammonia can form
a)
frost line
b)
asteroid belt
c)
keiper belt
d)
jovian belt
7.
The contraction of an astronomical object due to the influence of its own gravity
a)
planetary accretion
b)
gravitational collapse
c)
black hole formation
d)
protostar formation
8.
Because so little can be found of the first rocks to form on Earth, the best evidence for the early formation of our planet comes from studying which of the following?
a)
Asteroids, lunar rocks, and other objects in the solar system
b)
Weathering and erosion patterns in extreme enviorments
c)
The formation of gaseous elements through fusion in our sun
d)
Fluctuations in chemical compositions of successive lava flows
9.
Mercury, Mars, and Earth’s moon all show evidence of heavy cratering from meteor impacts while Earth shows much less evidence of meteor impacts. The most reasonable conclusion to make from this data is that the early solar system had a much higher density of rocky material, but–
a)
The Earth's surface has undergone erosion and other ongoing processes
b)
The rocky material was less likely to reach Earth
c)
Earth formed much later, when the solar system had fewer meteors
d)
The protection from impact provided by Earth's atmosphere is decreasing
10.
Why are lunar rocks often a better source of data on the early formation of Earth than rocks found on Earth itself?
a)
The age of the moon, which, like Earth, is the same as the rest of the solar system
b)
The lack of active volcanoes, tectonics, and erosional agents on the moon
c)
The gravitational attraction between Earth and the moon that holds them together
d)
The absence on the moon of a protective atmosphere to shield it from impacts
11.
_________________ is when gravity causes matter to come together and form larger bodies
a)
accretion
b)
radioactive decay
c)
erosion
d)
plate tectonics
12.
Where have we found evidence of the early history of Earth?
a)
The Moon, Venus, and Mars
b)
Mars, the Moon, and Jupiter
c)
Asteroids, the Moon, and Mars
d)
The gas planets
e)
Option 6
13.
The Jovian planets include (select all that apply)
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
e)
Mars
14.
Mercury, Venus, Earth and Mars are all examples of...
a)
Jovian planets
b)
Terresital planets
c)
Gaseous planets
d)
Dwarf planets
15.
What event is believed to have led to the formation of the Moon?
a)
Sun's gravitational pull
b)
Comet passing by Earth
c)
Volcanic eruption on Earth
d)
A large object colliding with Earth
16.
Complete the following analogy. Hydrocarbons: carbon:: carbon dioxide: ________.
a)
Phosphorous
b)
Sulfur
c)
Hydrogen
d)
Oxygen
17.
Approximately how old is the moon
a)
4 billion years
b)
3.5 billion years
c)
4.5 billion years
d)
6 billion years ago
18.
What force acts on a massive nebula to collapse it and eventually form a star?
a)
electrostatic force
b)
strong force
c)
weak force
d)
gravity
19.
How long ago did the Earth form?
a)
4.6 billion years ago
b)
10 billion years ago
c)
2 billion years ago
d)
20 million years ago
20.
What process describes the formation of planets from dust and gas in a nebula?
a)
Fragmentation
b)
Condensation
c)
Evaporation
d)
Accretion
21.
Which of the following best explains why meteorites are valuable for understanding the early solar system?
a)
Which of the following best explains why meteorites are valuable for understanding the early solar system?
b)
They are composed of rare elements not found on Earth.
c)
They contain water that is similar to Earth's oceans.
d)
They have been altered by Earth's atmosphere.
22.
What celestial body eventually evolved into our modern solar system?
a)
Nebula
b)
Planetary Disk
c)
Galaxy
d)
Black Hole
e)
Quasar
23.
Which of the following is the cause of material being relocated on the surface of Earth?
a)
Accretion
b)
Volcanoes
c)
Earthquakes
d)
Erosion
e)
Planetismials
24.

The formation of the solar system from a huge cloud of dust and gases is called the ​ (a)   theory.

Choose from the below words
nebular
protoplanet
planetesimal
solar
25.

The image shows the formation of the solar system from a cloud of gas.

Based on the image, which explanation best describes how gravity helped to form the solar system?

a)

the disintegration of the protosun into planets

b)

accumulation of leftover materials that formed into planets

c)

collisions between gas molecules that resulted in planet formation 

d)

condensation of gas and dust molecules that formed the protosun

26.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
27.

Which of the following processes is responsible for the formation of stars from a nebula?

a)

Erosion

b)

Radioactive decay

c)

Gravitational collapse

d)

Nuclear fusion

28.

What is the primary reason Earth has fewer visible craters compared to the Moon?

a)

The Moon has a stronger gravitational pull

b)

Earth's atmosphere burns up small meteors

c)

The Moon is closer to the asteroid belt

d)

Earth's surface is constantly changing due to erosion

29.

Which of the following best describes the role of gravity in the formation of the solar system?

a)

It caused the planets to form from leftover materials

b)

It led to the disintegration of the protosun

c)

It caused the solar system to expand indefinitely

d)

It prevented the formation of gaseous planets

30.

Which process is responsible for the transformation of a protostar into a main-sequence star?

a)

Nuclear fusion

b)

Gravitational collapse

c)

Radioactive decay

d)

Erosion

31.

What is the primary reason Earth has less visible cratering compared to the Moon?

a)

Earth's atmosphere burns up smaller meteors

b)

The Moon attracts more meteors due to its gravitational pull

c)

Earth's surface is constantly changing due to erosion and tectonics

d)

The Moon's surface is more resistant to impacts

32.

Which process is responsible for the formation of a planetary disk around a young star?

a)

Nuclear fusion

b)

Gravitational collapse

c)

Electrostatic forces

d)

Magnetic field interactions

33.

What is the main component of the early solar nebula that led to the formation of the Sun and planets?

a)

Silicon dust

b)

Carbon dioxide

c)

Hydrogen gas

d)

Iron particles

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