How Big, How Far, How Fast

In the observable part of the universe, there are how many galaxies?

• one million

• one hundred million

• one billion

• one hundred billion

How fast is the earth orbiting the sun?

• 660 mph

• 6,600 mph

• 66,000 mph

• 660,000 mph

Numbers like millions, billions, and trillions are hard for people to understand.

• True

• False

Bigger always means more massive.

• True

• False

The Sun is how many times more massive than Jupiter?

• 100

• 1,000

• 10,000

• 100,000

The monster truck and junk car represent which stars?

• Regulus/Sun

• Sun/Antares

• Aldebaran/Betelgeuse

• Zuben-el- Genubi/Sun

Regulus is ____ times more massive than our Sun.

• 2

• 3

• 4

• 5

The most massive star we know is how many times more massive than our Sun?

• 100-150 times

• 150-200 times

• 200-250 times

• 250-300 times

You mash 10,000,000 monster trucks into the size of a sugar cube. Putting sugar cubes together, how big a stack of cubes would be needed to equal a neutron star?

• 5 miles high and wide.

• 10 miles high and wide.

• 15 miles high and wide.

• 20 miles high and wide.

How much more would you weigh on a neutron star than on Earth?

• 500,000

• 5,000,000

• 500,000,000

• 5,000,000,000