What gases are in the unknown mixture?

• Gas B & Gas D
• Gas C & Gas B
• Gas A & Gas D
• Gas D & Gas C

Tags

NGSS.HS-PS1-3

A spectrum represents the specific parts of an object's

• sound

• light

• shape

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-4

Which two element make up most of the sun?

• helium and hydrogen

• ammonia and methane

• hydrogen and oxygen

• oxygen and helium

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

This picture is an example of a(n)...

• absorption spectrum
• emission spectrum
• continuous spectrum
• black body spectrum

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Choose all that apply. A star's spectra tells us what about a star.

• composition of that star (what elements make up that star)

• movement of a star (red shift or blue shift)

• brightness of a star

• temperatures of a star

Tags

NGSS.HS-ESS1-2

If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...

• Moving towards the Earth

• Moving away from the Earth

• This is a trick question that cannot be answered

• It isn't a star, it is a very large blueberry.

Tags

NGSS.HS-ESS1-2

By studying the spectra of stars, scientists were able to see redshifting, indicating the universe is ____________

• shrinking

• expanding

• not moving

• static

Tags

NGSS.HS-ESS1-2

Which spectrum tells you that the star is moving away from you the fastest?

• A

• B

• C

• D

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

Which spectrum shows a star moving towards you?

• A

• B

• C

• D

Tags

NGSS.HS-ESS1-2

NGSS.HS-PS4-1

Which star is moving away from us?

• Star 1

• Star 2

Tags

NGSS.HS-ESS1-2