The video explains the apparent movement of the sun across the sky, which is due to Earth's rotation on its axis. It describes how the Earth spins anticlockwise, creating a cycle of day and night as different parts of the planet face towards or away from the sun. The video also covers the global cycle of dawn and dusk, highlighting that at any given time, the sun is rising in one part of the world and setting in another.

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

• Because the sun is moving around the Earth

• Because the Earth is moving closer to the sun

• Because the Earth is rotating on its axis

• Because the sun is rotating on its axis

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

• 24 hours

• 12 hours

• 48 hours

• 365 days

What is the invisible line called around which the Earth rotates?

• Axis

• Meridian

• Orbit

• Equator

What happens to the part of the Earth that faces away from the sun?

• It experiences night

• It experiences day

• It becomes warmer

• It becomes brighter

What causes the cycle of dawn and dusk to move around the planet?

• The Earth's orbit around the sun

• The sun's movement across the sky

• The moon's orbit around the Earth

• The Earth's rotation on its axis