Review: Universe, Galaxies, Light Years, Big Bang

Which is larger: universe or solar system?

• universe

• solar system

Which is larger: planet or star?

• planet

• star

Which statement about stars is correct?

• Star formation begins in a nebula

• White dwarfs become main-sequence stars when they gain mass

• Supergiants are stars that can absorb black holes

• Main-sequence stars are formed by comets

Tags

112.20.b.8.A

Which statement best describes a nebula?

• A collection of hot gases that sometimes produces light from nuclear reactions

• A collection of hot gases that results from stars that have exploded

• A collection of dust and gases that forms stars or results from dying stars

• A collection of dust and gases that is found near stars

Tags

112.20.b.8.A

The closest star to the Earth is ​ (a)   .

• the Sun
• Polaris
• Orion
• Sirius

Tags

112.20.b.8.A

A system of stars, gas, dust, and dark matter that are bound together by gravity is called -

• an asteroid.

• a nebula.

• a galaxy.

• a moon.

Tags

NGSS.MS-ESS1-2

A large celestial body made of gases that emits (sends out) light due to nuclear fusion reactions is called -

• a galaxy.

• a nebula.

• a comet.

• a star.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

A large ball of ice that grows a tail when nearing a star like the sun is.....

• a comet

• an asteroid

What gives a galaxy its shape?

• Gravity

• Galaxy

• Nebula

• Stars

Tags

NGSS.HS-PS2-4

In the diagram given, what happens as we move to the left?

• Stars Get larger
• Stars get colder
• Stars get hotter
• Stars get brighter