Planets and Galaxies

We can't see all of the stars in our galaxy because they

• are too far away

• are too hot

• are revolving too quickly

If a galaxy appears to be more red-shifted, that means that ...

• it contains more red stars

• it is moving away from Earth

• it has less dark matter

• it has just the right amount of gravity

Tags

NGSS.HS-ESS1-2

What type of galaxy is the Milky Way?

• Spiral

• Elliptical

• Irregular

• Lenticular

A galaxy that is shaped like a sphere, football, or egg is an example of a(n)

• Spiral Galaxy

• Elliptical Galaxy

• Irregular Galaxy

A galaxy that has not regular or definite shape is called a(n)

• Spiral Galaxy

• Elliptical Galaxy

• Irregular Galaxy

Which type of galaxy is shown in the image?

• Spiral

• Elliptical

• Irregular

Tags

NGSS.MS-ESS1-2

Which type of galaxy is shown in the image?

• Spiral

• Elliptical

• Irregular

Tags

NGSS.MS-ESS1-2

Which type of galaxy has young stars with lots of gas and dust in the arms and older stars in the bulge with little gas and dust?

• spiral

• elliptical

• irregular

Which type of galaxy has some have young stars and lots of gasses, some thought to be the result of two galaxies that have collided? These are the smallest types of galaxies.

• spiral

• elliptical

• irregular

Which type of galaxy has billions of old stars that contain little dust or gases between them. Others contain trillions of stars and are extremely large in size and does not make new stars. These galaxies can be some of the largest in the universe.

• spiral

• elliptical

• irregular