Day and Night - Earth’s Rotation

The video explains how the Earth's rotation on its axis causes day and night. It describes how one side of the Earth faces the sun, resulting in daylight, while the opposite side experiences darkness. The equator spins at over 1000 mph, while the poles remain almost stationary. The sun and moon's apparent movement across the sky is an illusion caused by Earth's rotation. At night, stars and the moon become visible, with the moon reflecting sunlight. The Earth completes a full rotation every 24 hours, defining the length of a day.

What causes the cycle of day and night on Earth?

• The Earth's rotation on its axis

• The sun's movement across the sky

• The Earth's orbit around the sun

• The moon's orbit around the Earth

Why does the sun appear to move across the sky during the day?

• The stars are pushing the sun

• The moon is pulling the sun

• The Earth is rotating on its axis

• The sun is moving around the Earth

What is the main reason the sun seems to set in the evening?

• The sun is moving away from the Earth

• The Earth is rotating away from the sun

• The stars are covering the sun

• The moon is blocking the sun

How does the moon get its light?

• It generates its own light

• It reflects light from the sun

• It emits light from its core

• It absorbs light from the stars

What is the duration of one full rotation of the Earth?

• 12 hours

• 24 hours

• 36 hours

• 48 hours