Star Formation and Galaxies

All the base-elements of the periodic table come from...

• the fission inside stars.
• the fusion inside stars.
• the fire inside stars.
• the fusion of planets.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Which of the following are galaxy types?

• Spiral

• Elliptical

• Spherical

• Irregular

Stars are born in clouds of stellar dust called _______________.

• nebulas

• galaxies

• planets

• supernovas

What is the most abundant element found in nebulas?

• Helium

• Carbon

• Oxygen

• Hydrogen

Tags

NGSS.HS-ESS1-3

What temperature does fusion begin?

• 10 thousand degrees celsius

• 10 million degrees celsius

• 10 billion degrees celsius

• 1 billion kelvin

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

During the fusion process of a main sequence star, ______________ is turned into _____________.

• hydrogen; helium

• helium; hydrogen

• hydrogen; iron

• carbon; oxygen

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

What factor determines the life cycle of a star?

• color

• mass

• temperature

• location in the galaxy

What is the first stage of every star?

• protostar

• main sequence

• blue giant

• white dwarf

What is the last stage of our star (the sun)?

• red giant

• white dwarf

• supernova

• black hole

How big will our star (the sun) become when it enters the 'red giant' phase?

• its radius will become one third its current size

• its will radius will envelop the entire solar system

• its radius will be the same size as Earth

• it will expand to a radius that goes past Earth

Tags

NGSS.HS-ESS1-3