Wonderful whys · 48/50 · Ages 8–10
A shadow with no shoes
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Fox notices a shadow following a pretend walk. The shadow is not a pet. It is a darker area where Fox blocks light that would otherwise reach a surface.
What you will discover
- An opaque object blocks light and can make a shadow.
- Changing the light or the object’s position can change the shadow.
English vocabulary
- shadow
- cái bóng
- block
- chắn
Let’s play
What creates Fox’s shadow on the ground?
- Fox blocking light
- A second invisible fox
- The ground drawing a picture
See the explanation
Less light reaches the area behind the light-blocking object.
Practise touch typing
Place your hands on F and J and type this sentence using ten fingers.
A shadow forms when something blocks light.
Two little quiz questions
1. Can a shadow’s shape change?
- Yes, with positions and light
- No, never
- Only if it gets hungry
Answer and explanation
Yes, with positions and light. Shadows depend on where the light, object, and surface are.
2. Which object usually blocks visible light better?
- An opaque cardboard shape
- Clear glass
- Empty air
Answer and explanation
An opaque cardboard shape. Opaque cardboard blocks light; clear glass transmits much of it.
Read more with an adult: Exploratorium: Light and shadow