Where are we located within our galaxy?

In between 2 of the spiral arms

Galaxies are composed of (best answer)

stars, dust, and gas held together by gravity

What is the big bang theory?

A theory that states that the universe started in a small mass and then expanded, the expansion cooled down the temperature and that resulted in the formation of matter, energy, space and time.

A theory that states that the universe started in a large mass and then imploded to form everything.

A theory that states that the universe was there, will be and is there. Is homogeneous and isotropic.

A theory that states that the universe is slowly coming back to a center.

The red-shift in the spectral lines of light, reaching us from other galaxies implies that these galaxies ____________.

Are moving farther apart from one another

Are moving closer to one another

The Big Bang Theory suggests that our universe formed as the result of a huge explosion that sent all existing matter flying outward from a single point. The Big Bang Theory is supported by which of these observations?

All galaxies appear to be moving away from all other galaxies.

All matter in the universe is composed of the same atoms.

All stars in the universe are approximately the same age.

The universe is relatively the same temperature in all locations.

Cosmic Microwave Background Radiation (CMBR) is the term used to describe the residual microwave radiation observed everywhere in the universe that seems to have no single source. The observation of CMBR is used as evidence of the Big Bang Theory because it is believed to be -

radiation left over from the rapid expansion of matter.

the result of collisions between neighboring galaxies.

particles of dust that have absorbed radioactivity.

light energy emitted from the source of the Big Bang.

How does Cosmic Microwave Background Radiation support the Big Bang Theory?

Microwaves are found everywhere in the universe.

Microwaves occurred at the time of the Big Bang

Microwaves are useful in our everyday lives

The universe is expanding! This means that:

all of the galaxies are spreading out.

the universe must have started from a single point.

8.9B: '24: Norman: 8th: Galaxy Classification & Universe Origins

Authored by Clayton Norman

Science

8th Grade

NGSS covered

Used 13+ times

8.9B: '24: Norman: 8th: Galaxy Classification & Universe Origins

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22 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The Milky Way Galaxy is a

spiral

lenticular

elliptical

irregular

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What type of galaxy is this?

Spiral

Elliptical

Irregular

Irrational

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What type of galaxy is this?

Spiral

Elliptical

Irregular

Irrational

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Distance measurement used by astronomers for distant objects.

Kilometers

Light Years

Miles

Light Seconds

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many stars are in a galaxy.

millions or billions

thousands

hundreds

Ten

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What type of galaxy is this?

Spiral

Elliptical

Irregular

Irrational

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What type of galaxy has no defined pattern or shape?

Spiral

Elliptical

Irregular

Constellation

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8.9B: '24: Norman: 8th: Galaxy Classification & Universe Origins

The Milky Way Galaxy is a

What type of galaxy is this?

What type of galaxy is this?

Distance measurement used by astronomers for distant objects.

How many stars are in a galaxy.

What type of galaxy is this?

What type of galaxy has no defined pattern or shape?

What galaxy do we live in?

What holds a galaxy together?

Where are we located within our galaxy?

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