Science

The Sun seems to move across the sky from sunrise to sunset. Why does the Sun seem to move?

• The Sun is rotating on its axis.

• Earth is rotating.

• The Sun is orbiting around Earth

• Earth is orbiting around the Sun.

Tags

NGSS.MS-ESS1-1

The Moon, Sun, and Earth have different physical characteristics. Which of these best describes a physical characteristic of the Sun?

• It is a solid and has many layers

• It rotates on its axis every 24 hours

• It is mostly made of hydrogen and helium

• It is smaller and has less gravity than Earth or the Moon

Tags

NGSS.MS-PS1-1

The diagram shows the shadow of a tree in a field at noon on a summer day. The sun rises at 7:00 A.M. on this day. Which diagram best shows the shadow of the tree at 10:00 A.M. on the same day?

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Tags

NGSS.MS-ESS1-1

A teacher asks students to explain what they see in this picture. Four student explanations are shown in the box

• Student 1 only

• Students 2 and 4 only

• Student 2 only

• Students 1 and 3 only

Tags

NGSS.MS-ESS1-1

Which of these best explains why the sun appears to move across the sky each day?

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Tags

NGSS.MS-ESS1-1

A student draws a model showing the movements of Earth, the moon, and the sun. Which arrow shows the movement that causes day and night on Earth?

• Arrow 1, because it shows the rotation of the sun

• Arrow 2, because it shows the orbit of Earth around the sun

• Arrow 3, because it shows the orbit of the moon around Earth

• Arrow 4, because it shows the rotation of Earth

Tags

NGSS.MS-ESS1-1

A student draws diagrams of her house and the location of the sun in the sky. Which diagram below does not correctly represent the location of the sun at the time indicated?

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Tags

NGSS.MS-ESS1-1

Some students used a globe to model the rotation of Earth. They shaded in Texas on the globe, as shown below. They rotated the globe and observed that Texas was in exactly the same place after each rotation. The students could rotate the globe quickly or slowly. If the globe could rotate only at the rate that Earth actually rotates, about how long would each complete rotation take?

• 30 days

• 60 minutes

• 24 hours

• 365 days

Tags

NGSS.MS-ESS1-1

Which of these cycles is a direct result of Earth’s rotation?

• Day and night

• Moon phases

• Rainfall and evaporation

• Seasons

About how long will it take for the Moon to move from the position shown above to a position directly between Earth and the Sun?

• 1 week

• 14 days

• 1 month

• 2 seasons

Tags

NGSS.MS-ESS1-1