Amplify Patterns of Earth and Sky

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

• One hour

• One day

• One month

• One year

Answer explanation

Earth takes approximately one day to complete one full rotation on its axis, which is why we experience day and night. The other options, such as one hour, one month, and one year, do not accurately represent this rotation period.

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NGSS.MS-ESS1-1

How long would it take for Earth to complete one full orbit around the sun?

• One hour

• One day

• One month

• One year

Answer explanation

Earth takes one year to complete its orbit around the sun. This is due to the gravitational pull of the sun and the distance Earth travels in its elliptical path, making 'one year' the correct answer.

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NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

The picture shows the daytime side of Earth. Which of the following best describes why Earth has day and night?

• The Moon's Rotation

• The Earth's Rotation

• The Moon revolves around Earth

• The Earth's Orbit

Answer explanation

Earth has day and night due to its rotation on its axis. As it spins, different parts of the planet face the Sun, creating daytime, while the opposite side experiences night.

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NGSS.MS-ESS1-1

Scientists would see Constellation C in the sky on November 2024. When would you be able to see this constellation again?

• Every day of the year.

• Every 6 months.

• On the same day every year.

• Every 3 months

Answer explanation

Constellations appear in the same position in the sky on the same date each year due to Earth's orbit around the Sun. Therefore, if Constellation C is visible in November 2024, it will be visible again in November each subsequent year.

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NGSS.MS-ESS1-1

• Student 1 only

• Students 2 and 4 only

• Student 2 only

• Students 1 and 3 only

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NGSS.MS-ESS1-1

A student observed the Sun throughout the day over the neighbor’s house. The change the student observed is caused by -

• orbit of Earth around the Sun

• rotation of Earth on its axis

• orbit of the Sun through space

• reflection of the Sun off the Moon

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NGSS.MS-ESS1-1

What causes the phases of the Moon as observed from Earth?

• The Earth's shadow on the Moon

• The Moon's rotation on its axis

• The Moon's orbit around the Earth

• The Sun's position relative to the Earth

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NGSS.MS-ESS1-1

Which of the following best explains why we have different seasons on Earth?

• The Earth's distance from the Sun changes

• The Earth's axis is tilted relative to its orbit

• The Sun's energy output varies

• The Earth's rotation speed changes

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NGSS.MS-ESS1-1

What is the primary reason for the occurrence of solar eclipses?

• The Moon passes between the Earth and the Sun

• The Earth passes between the Sun and the Moon

• The Sun moves closer to the Earth

• The Moon's shadow falls on the Sun

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NGSS.MS-ESS1-1

Which layer of the Earth's atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere