The video explores how shadows change in length and direction throughout the day due to the Sun's movement across the sky. It explains the concept of shadows, how they are formed, and how ancient civilizations used the Sun's position to tell time. By observing a lamppost's shadow from morning to evening, the video demonstrates the patterns in shadow length and direction, emphasizing that shadows are longest when the Sun is low and shortest when it is high. The video concludes with an analysis of shadow data using graphs.

Why does your shadow appear longer in the evening?

• The Sun is closer to the Earth.

• The Sun is behind clouds.

• The Sun is directly overhead.

• The Sun is lower in the sky.

What causes a shadow to form?

• Light passing through an object.

• Light being absorbed by an object.

• Light being blocked by an object.

• Light reflecting off an object.

How did ancient civilizations use the Sun?

• As a giant clock.

• As a source of energy.

• To predict weather patterns.

• To navigate the seas.

What happens to the shadow of a lamp post at noon?

• It disappears completely.

• It points directly East.

• It becomes very short.

• It points directly West.

In which direction does a shadow point in the morning?

• East

• West

• South

• North

What happens to the shadow length as the Sun sets?

• It remains the same.

• It becomes shorter.

• It becomes longer.

• It disappears.

What is the relationship between the Sun's position and shadow direction?

• Shadows point in the same direction as the Sun.

• Shadows point in the opposite direction of the Sun.

• Shadows point directly upwards.

• Shadows do not change direction.

What pattern do shadows follow during the day?

• They disappear at noon.

• They remain constant in length.

• They change randomly.

• They follow the Sun's movement.

How does the Sun's position affect shadow length?

• Higher Sun, longer shadows.

• Sun's position does not affect shadow length.

• Lower Sun, shorter shadows.

• Higher Sun, shorter shadows.

What is the main factor that determines the direction of a shadow?

• The object's height.

• The Sun's position in the sky.

• The object's color.

• The time of year.