Space Unit 3- The solar system & beyond

A galaxy is a ...

• an object that is so dense that nothing within a certain distance from it can escape its gravitational field

• a collection of stars, dust, and gases held together by gravitational forces

• a gigantic explosion of a large star

• a unit of length equal to the distance that light travels in space in one year

Tags

NGSS.MS-ESS1-2

Scientists rely on patterns and observations to make conclusions. Based on various patterns, how old is our solar system?

• 150.2 trillion years old

• 100 billion years old

• 1 million years old

• 4.6 billion years old

Tags

NGSS.MS-ESS1-3

NGSS.MS-ESS1-4

Which of these is a pattern that scientists can use to study the formation of the solar system?

• Jupiter’s surface temperatures for the past 10 years

• the revolution of the planets over the last 100 years

• the behavior of artificial satellites over the last 20 years

• Earth’s weather patterns for the last 5 years

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

Which Galaxy has some dust and gasses surrounding a galactic center. The shape is an elongated oval with no arm?

• elliptical

• spiral

• irregular

• triangular

What type of galaxy is the milky way?

• Elliptical

• irregular

• Spiral

• triangular

True or False: Black holes normally appear as a bright cluster of heated and glowing matter.

• True

• False

A nebula is

• collection of dwarf planets.

• large cloud of gas and dust.

• collection of comets.

• large constellation of stars.

Which event happens first in the formation of planets?

• Dust and gas particles form distinct clumps that slowly grow in size.

• Planetesimals pick up more dust and gas very quickly as they rotate and revolve.

• The planets rotate and revolve around the sun along one orbital plane

• Revolving bits of dust and gas run into each other. They stick together due to gravitational and other forces.