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Nebular Theory

Nebular Theory

Assessment

Presentation

•

Science

•

6th - 10th Grade

•

Hard

Created by

Joseph Anderson

FREE Resource

15 Slides • 26 Questions

1

Nebular Theory

So…how did the solar system form and end up with all these different types of objects? 

​

Currently the best theory is the Nebular Theory . This states that the solar system developed out of an interstellar cloud of dust and gas, called a nebula .

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2

Multiple Choice

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How long does it take light from our Sun to reach Earth?

1

3 seconds

2

8 minutes

3

57 hours

4

1 year

3

Multiple Choice

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Which elements are most

abundant in the visible

universe?

1

Hydrogen and Carbon

2

Carbon and Helium

3

Hydrogen and Oxygen

4

Hydrogen and Helium

4

Open Ended

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What do you KNOW about how our solar system may have formed?

5

Open Ended

What do you WANT to know about how our solar system may have formed?

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Multiple Choice

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Galaxies are...

1

getting closer to one another

2

getting further apart from one another

3

remaining the same distance from one another

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Solar System Forms..

Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust (nebula).

The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova.

When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material.

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Formation of our Solar System

  • 1-2. Nebula (cloud of gas & dust) --> gravity pulls on this cloud = turbulence

  • 3. Gravity collapses the nebula flat and begins to spin. Sun (H + He) forms in center = immense heat & gravity

  • 4-5. A star is born, nuclear fusion, explosion of energy and matter....

  • 6. Sun gobbles up most of the exploding matter (99%), but some escapes = protoplanets

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A. Nebula turbulence & collapse B. Protostar explosion C. Protoplanets form D. Planets cool

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Step by Step...

  • a) About 4.5 bya, a dense cloud of interstellar gas & dust exists

  • b) The cloud collapses inward, possibly due to the shockwave of supernova

  • c) Protostar explosion

  • d) 1% escapes = protoplanets

  • e) Planets, moons, asteroids cool...

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Fill in the Blank

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The Big Bang Theory refers to the formation of the...

22

Fill in the Blank

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The Nebular Theory refers to the formation of our ...

23

Multiple Choice

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What materials are blasted away from the inner rocky planets by the sun's heat & solar winds ?

1

Gamma Rays

2

Plasma

3

Ice and Gas

4

Rocks

24

Multiple Choice

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The most abundant gases in nebula are:

1

Hydrogen & Oxygen

2

Nitrogen & Oxygen

3

Hydrogen & Helium

4

Oxygen & Helium

25

Multiple Choice

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A nebula starts to collapse inward because of:

1

A nearby star shining it's light

2

A passing spaceship

3

A passing comet

4

Gravity

26

Multiple Choice

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Nebula turbulence/movement increases because:

1

A nearby supernova

2

Thanos

3

A passing spaceship

4

A passing comet

27

Multiple Select

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A nebula collapses down into a disk called:

1

A compact disk

2

An accretion disk

3

A protoplanetary disk

4

A circular disk

28

Multiple Choice

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The shape of the planets and dwarf planets after accumulating all their material is:

1

Irregular

2

A Sphere

3

An Oval

4

A disk

29

Multiple Choice

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What percentage of the nebula did our Sun gobble up?

1

99%

2

1%

3

50%

4

75%

30

Multiple Choice

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Intense pressure in the protosun (protostar) caused:

1

Fire in the Sun to start

2

Helium to break down into Hydrogen

3

Nuclear Fusion to start

4

Nuclear Fusion to end

31

Multiple Choice

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How long ago did the nebular processes that formed our solar system start?

1

4.6 years ago

2

4.6 million years ago

3

5.6 billion years ago

4

4.6 billion years ago

32

Multiple Choice

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The group of outer planets are known as:

1

The Terrestrial Planets

2

The Gas/Ice Giants

3

The Inner Planets

4

The Rocky Planets

33

Multiple Select

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Why did the lighter elements stay in the Gas Giants?

1

Their own gravity is strong enough to hold on to these elements.

2

They are less dense.

3

They are far from the sun so the solar wind does not affect these planets.

4

Their own magnetic field attracts the gases strongly.

34

Multiple Choice

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The group of inner planets are known as:

1

The Terrestrial Planets

2

The Gas Giants

3

The Outer Planets

4

The Hallow Planets

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Multiple Choice

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What caused the lighter elements (hydrogen, helium, etc..) to leave the terrestrial planets?

1

Gravity from the Gas Giants

2

Nothing, the lighter elements stayed

3

Gravity from the Sun

4

Heat from the Sun

36

Multiple Choice

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The planetesimals keep:

1

Colliding and breaking apart

2

Colliding and sticking together

3

Colliding and bouncing around

4

Breaking down into smaller pieces

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Multiple Choice

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What is forming in the accretion/protoplanetary disk away from the center?

1

Light

2

Protostars

3

Planetesimals

4

Hydrogen

38

Multiple Choice

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What forms in the center of the accretion/protoplanetary disk?

1

A protostar

2

A planet

3

A protoplanet

4

A planetesimal

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Multiple Choice

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As a nebula collapses it also :

1

Expands

2

Rotates

3

Shakes

4

Turn to ices

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Multiple Choice

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The Nebular Theory is:

1

A theory on how the Milky Way galaxy was formed

2

A theory on how the universe was formed

3

A theory on how the solar system will be destroyed

4

A theory on how the solar system was formed

41

Multiple Choice

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How long ago did the Big Bang occur?

1

4.6 million years ago

2

4.6 billion years ago

3

13.7 million years ago

4

13.7 billion years ago

Nebular Theory

So…how did the solar system form and end up with all these different types of objects? 

​

Currently the best theory is the Nebular Theory . This states that the solar system developed out of an interstellar cloud of dust and gas, called a nebula .

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