CK-12 Chapter 26 Stars, Galaxies & the Universe Test Review

Stars are made of mostly

• gas and dust

• hydrogen and helium

• carbon and oxygen

Spectroscopes reveal a pattern of lines in the light of a star. This pattern, or spectrum, reveals the _____ of the star.

• birthplace

• composition

• location

Tags

NGSS.HS-ESS1-2

This element was first discovered in the spectrum of the _____.

• Earth

• Moon

• Sun

• stars

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

All _____ stars fuse hydrogen into helium in their core as the source of their energy.

• main sequence

• red giant

• supergiant

• white dwarf

Tags

NGSS.HS-ESS1-1

Stars form in nebulae as ____ draws the dust, ice, and gas together.

• electromagnetism

• magnetism

• gravity

• solar wind

____ live a long time because they fuse their hydrogen slowly.

• main sequence stars

• low mass stars

• white dwarf stars

• high mass stars

______ have a higher temperature than _____ because they fuse more H into He in their cores.

• high mass stars/low mass stars

• red giants/main sequence stars

• white dwarf stars/main sequence stars

High mass stars are _____ than low mass stars because they are fusing more H into He in their cores.

• cooler

• brighter

• fainter

• bigger

Tags

NGSS.HS-ESS1-1

After a main sequence star has used up all the H in its core, it starts fusing He and turns into a _____.

• supernova

• white dwarf

• red giant

• neutron star

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

During its red giant stage, a sun-like star fuses helium into _____.

• hydrogen

• carbon

• oxygen

• nitrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3