A student wants to explain the thickness of Earth's crust to his class. Which answer best describes what he could use to explain the thickness of Earth's crust?

• a spacesuit worn by an astronaut

• the air in a basketball

• The skin of an apple

• a rubber tire on a car's wheel

How many hours do two full days and full nights take on Earth?

• 24 hours

• 48 hours

• 36 hours

• 12 hours

Look at the drawing. The drawing best represents-

• the change from day to night

• the thickness of Earth's crust

• Earth's atmosphere

• Earth's rotation on its axis

A student is looking for evidence of the constant rotation of Earth on it axis. Which of the following provides the best evidence for this?

• The changing lengths and directions of shadows through the day

• the changing shape of the moon in the night sky

• the changing air pressure before a rainstorm

• the changing temperature and rainfall through the year

A student used a globe to demonstrate the rotation of the Earth. The student slowly rotated the globe until the point labeled A returned to exactly where it is shown in the picture. How much time did the student's demonstration represent?

• 1 minute

• 28 days

• 24 hours

• 1 hour

Tags

NGSS.MS-ESS1-1

All of the following descriptions of the sun are correct EXCEPT--

• It is closer to Earth than it is to Venus

• It is the largest object in the solar system

• It is closest star to Earth

• It is located at the cent of the solar system

Tags

NGSS.MS-ESS1-3

Which of the following shows the sun, the moon, and the Earth arranged in order from least to greatest mass?

• sun, moon, Earth

• moon, Earth, sun

• sun, Earth, moon

• Earth, moon, sun

Tags

NGSS.MS-ESS1-3

NGSS.MS-PS2-4

A student wants to show how the moon reflects light from the sun. Which answer best describes how he could show how light reflects off the moon?

• place four candles around a basketball on the floor

• place a tennis ball next to a basketball

• spin a ball outside on the ground when the sun is shining

• shine a flashlight on a golf ball in a dark room

Tags

NGSS.MS-PS4-2

A student notices the shadow of a tree in the schoolyard before going in to class in the morning. Then, the student observes the tree's shadow late in the afternoon after classes are over. Which statement best explains the change in the shadow?

• As Earth rotates on its axis, the position of the sun relative to the tree change

• as the sun rotates on its axis, the position of the sun relative to the tree changes

• as Earth revolves around the sun, the position of the sun relative to the tree changes.

• As the sun revolves around Earth, the position of the sun relative to the tree changes

Tags

NGSS.MS-ESS1-1

Which is the main reason that humans must wear space suits to survive on the surface of the moon?

• unlike Earth, it has hardly any atmosphre

• unlike Earth, its atmosphere is mostly poisonous nitrogen

• unlike Earth, it has very low gravity

• unlike Earth, it has very high magnetism