The structure of the sun

The hypothesis that the sun and the planets developed out of the same cloud of gas and dust is called the

• nebular theory

• nuclear theory

• theory of relativity

• theory of convection

Tags

NGSS.MS-ESS1-2

the small bodies of matter that filled the solar nebula are called

• protoplanets

• planetesimals

• auroras

• protons

compared with the size of the present-day planets the protoplanets were

• much smaller

• slightly smaller

• similar

• larger

Tags

NGSS.MS-ESS1-3

The first atmosphere of the earth had a high percentage of

• helium

• oxygen

• nitrogen

• water vapor

In the process of photosynthesis,cyanobacteria and green plants give off

• helium

• oxygen

• nitrogen

• carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Water vapor began to condense into oceans about

• 1 to 1.5 Million years ago

• 1 to 1.5 Billion years ago

• 3 to 3.5 Billion years ago

• 15 to 15.5 Million years ago

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Ions that stream out into space through holes in the corona create the

• ozone layer

• solar wind

• chromosphere

• solar nebula

The inner planets may have lost their original atmospheres of lighter gases because of an intense

• solar flare

• solar wind

• prominence

• solar nebula

The transfer of energy by moving liquids or gases occurs by the process called

• convection

• granulation

• fusion

• radiation

The fusion of hydrogen nuclei in the sun produces a nucleus of

• hydrogen

• oxygen

• helium

• sodium

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8