What is a shadow?

The video explains the concept of shadows, starting with a riddle about what is short and disappears in the dark. It then describes how shadows are formed when an object blocks light, creating a darker area behind it. Various examples are provided, including an igloo, a pyramid, a cactus, an eagle, and a reindeer, each casting shadows in different environments. The video concludes by explaining how personal shadows are formed when individuals block light.

What is a shadow?

• A reflection of light

• A darker area created when light is blocked

• A source of light

• A type of light

Which of the following objects can create a shadow?

• A mirror

• A beam of light

• A pyramid

• A transparent glass

How does a cactus create a shadow?

• By absorbing light

• By reflecting light

• By blocking sunlight

• By emitting light

What causes the shadow of an eagle in flight?

• The eagle reflecting sunlight

• The eagle absorbing light

• The eagle blocking light

• The eagle emitting light

How is your own shadow formed?

• By emitting light

• By absorbing light

• By reflecting light

• By blocking light