Unit 1: The Night Sky Review

What is the imaginary sphere surrounding Earth that represents the sky?

• Celestial Equator

• Celestial Sphere

• Ecliptic

• Horizon

What is the spinning motion of Earth on its axis?

• Revolution

• Rotation

• Orbit

• Solstice

Tags

NGSS.MS-ESS2-6

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

• 24 hours

• 365 days

• 30 days

• 12 hours

What is the movement of Earth around the Sun called?

• A) Rotation

• B) Revolution

• C) Orbit

• D) Equinox

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

How long is Earth's period of revolution?

• 24 hours

• 30 days

• 365.25 days

• 12 months

Tags

NGSS.MS-ESS1-2

What is a solar day?

• The time it takes for Earth to rotate once relative to the Sun

• The time it takes for the Moon to orbit Earth

• The time between two full moons

• The time it takes for Earth to orbit the Sun

Tags

NGSS.MS-ESS1-1

What is a sidereal day?

• A day measured by the stars, slightly shorter than a solar day

• The time from sunrise to sunset

• A day that occurs during an equinox

• A lunar day

What is the point directly overhead called?

• Horizon

• Zenith

• Ecliptic

• Celestial Pole

What marks the apparent path of the Sun across the sky?

• Zenith

• Celestial Equator

• Ecliptic

• Circumpolar Path

What occurs when the Sun is directly above the equator, creating equal day and night?

• A) Solstice

• B) Equinox

• C) Eclipse

• D) Circumpolar Event