Galaxies and Constellations

Before a star there is a ___

• nebula

• cloud of gas and dust

• all of these

• higher local density of material in space

Before a solar system there is a ___

• nebula

• cloud of gas and dust

• all of these

• higher local density of material in space

Before a galaxy there is a ___

• nebula

• cloud of gas and dust

• all of these

• higher local density of material in space

how old is the universe?

• 5 billion years

• 14 billion years

• 5 trillion years

• 14 trillion years

Tags

NGSS.HS-ESS1-2

how old is Sol?

• 5 billion years

• 14 billion years

• 5 trillion years

• 14 trillion years

Tags

NGSS.HS-ESS1-1

how old is Earth?

• 5 billion years

• 14 billion years

• 5 trillion years

• 14 trillion years

Our sun contains ___% of the mass of the solar system

• 99.8%

• 98%

• 85%

• 50%

Tags

NGSS.MS-ESS1-3

Which is not a main sequence star?

• white dwarf

• yellow dwarf

• red dwarf

Which is a dead star? There is no more fusion.

• white dwarf

• yellow dwarf

• red dwarf

Which is our star?

• white dwarf

• yellow dwarf

• red dwarf

Tags

NGSS.HS-ESS1-1