Day and Night

One day on Earth is twenty-four hours long because __________.

• that is how long it takes for Earth to revolve around the Sun

• that is how long it takes for the Moon to completely revolve around Earth

• that is how long it takes for Earth to complete one full rotation

Tags

NGSS.MS-ESS1-1

Seen from space, the division between day and night appears as a(n) __________ on Earth's surface.

• series of random splotches of light and dark

• angle

• line

The Sun always illuminates __________.

• only the very top of Earth

• half of Earth

• only the very bottom of Earth

Tags

NGSS.MS-ESS1-1

What people on Earth perceive as day and night are actually the result of __________.

• Earth revolving around the Sun

• the rotation of Earth

• the Moon revolving around Earth

Tags

NGSS.MS-ESS1-1

When you see the "sunrise" on Earth, what is actually occurring?

• Earth is rotating on its axis.

• The Sun has revolved around to your side of Earth.

• The Moon has moved enough to stop blocking your view of the Sun.

Tags

NGSS.MS-ESS1-1

Which half of Earth is the dark half?

• the side that is facing away from the Sun at that particular moment in time

• the eastern half

• the western half

Tags

NGSS.MS-ESS1-1

The half of the Moon that is illuminated is always the same. This statement ____.

• is true

• can be made true by changing "the Moon" to "Earth"

• can be made true by changing "half" to "quarter"

• can be made true by changing "the same" to "changing"

Tags

NGSS.MS-ESS1-1

Darkness is ______.

• a thing

• the absence of light

• an illumination

• imaginary

People long ago were frightened of the night because they _______.

• thought the Sun might not come back in the morning

• knew the Sun would return in the morning

• thought the night was caused by Earth’s shadow

• believed the night was caused by werewolves

Tags

NGSS.MS-ESS1-1

Darkness comes and goes because ________.

• the Sun comes and goes

• Earth rotates

• the Sun rotates

• the Moon rotates

• none of the above

Tags

NGSS.MS-ESS1-1