Grade 8 lesson 7

What is the name of the accepted model of our solar system with the Sun at the center?

Group of answer choices

• Heliocentric model

• Geocentric model

• Ellipitcal model

• Aristotlen model

How does the size of the Sun compare to the planets?

• The Sun is about the same size as the planets

• The Sun is smaller than the planets.

• The Sun is slightly larger than the planets.

• The Sun is much larger than the planets.

Tags

NGSS.MS-ESS1-3

Why does Earth stay in orbit?

• the tilt of Earth on its axis

• the lunar cycle

• the gravitational pull of the Sun

• Earth’s rotation

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which of the following statements best describes one way that the Moon is different from Earth?

• The Moon has no gravity

• The Moon receives almost no solar light

• The Moon has almost no atmosphere

• The Moon is not solid.

How long does it take for Earth to complete one rotation?

• 24 hours

• 1 year

• 12 hours

• 365 days

Suppose Earth was tilted much less on its axis. What effect would this have on the planet?

• Tides would not occur as often.

• A day would be much longer.

• Eclipses would not take place.

• Winters would be warmer.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

Which way does the Sun move across the sky?

• North to South

• West to East

• South to North

• East to West

Which position of the Earth represents summer for the Northern hemisphere? (

• A

• C

Tags

NGSS.MS-ESS1-1

Why does the Earth have seasons?

• Because of its rotation

• Because of its tilt

• Because of its magnetic field

• Because of its elliptical orbit

Tags

NGSS.MS-ESS1-1

Which of the following best explains why it is warmer at the equator than at the North Pole?

• The equator receives more direct sunlight than the North Pole.

• The equator has more hours of daylight per year than the North Pole.

• The equator is closer to the Sun than the North Pole.

• The equator has a larger area than the North Pole.

Tags

NGSS.MS-ESS2-6