The Science of Earth's Rotation

The video explains that although we don't feel it, Earth spins at about 1,600 km/h. This rotation causes the regular occurrence of day and night. Historically, people believed the sun moved around Earth, but we now understand that Earth rotates on its axis every 24 hours, causing the sun to appear to rise and set. This rotation results in daylight when our side of Earth faces the sun and night when it rotates away.

Why don't we feel the Earth spinning at high speeds?

• Because the Earth is too big

• Because the Earth is not spinning

• Because the Earth is too small

• Because the Earth spins too slowly

What natural phenomenon helps us understand that the Earth is rotating?

• The movement of the stars

• The occurrence of day and night

• The changing seasons

• The phases of the moon

What did people historically believe about the sun's movement?

• The sun moved around the Earth

• The sun moved around the stars

• The sun was stationary

• The sun moved around the moon

How long does it take for the Earth to complete one full rotation on its axis?

• 12 hours

• 72 hours

• 24 hours

• 48 hours

What causes the cycle of day and night on Earth?

• The Earth's orbit around the sun

• The Earth's rotation on its axis

• The moon's orbit around the Earth

• The sun's rotation on its axis