Earth science review

how many steps are in the scientific method?

• 5

• 8

• 7

• 6

what doesn't change in the experiment?

• control

• dependent variable

• constant

• independent variable

when was the first life on earth?

• 2.5 billion years ago

• 2.5 million years ago

• 5 million years ago

• 4.5 billion years

Tags

NGSS.HS-ESS1-6

a hot dense mass of hydrogen?

• a planet

• a continent

• a star

• an asteroid belt

Tags

NGSS.HS-ESS1-3

NGSS.HS-ESS1-1

a cloud of gas drifting away from a dying star?

• neutron star

• black hole

• planetary nebula

• white dwarf

Tags

NGSS.HS-ESS1-3

how many planets are in our solar system?

• 7

• 4

• 9

• 8

Tags

NGSS.MS-ESS1-3

what is the closest planet to the Sun?

• Venus

• Mercury

• Neptune

• Saturn

what is the coldest planet in our solar system?

• Neptune

• Saturn

• Uranus

• Earth

what is the Four terrestrial 2 planets?

• mercury

• jupiter

• earth

• mars

• venus

what is the least dense planet in our solar system?

• earth

• neptune

• saturn

• venus