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Light and Shadows
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What surfaces are better reflectors: rough or smooth?
Smooth, like mirrors.
Why is the Moon not a light source?
Because it reflects the sunlight.
What happens to shadows made by the Sun during the day?
They change direction and shape.
Why do transparent objects not make good shadows?
They don't stop a lot of light.
How can I change a shadow's size?
Closer = bigger, far away=smaller
Name three natural light sources.
Sun, stars, fire, etc.
How do mirrors work?
The light is reflected on their surface.
How do we see things?
Light travels from a light source, bounces off an object and gets to our eyes.
What happens when light gets to an opaque object?
If's blocked and forms a shadow.
Name the 3 things we need to make a shadow.
Object, light source, screen (surface).
A wall is...
Opaque
A glass is...
Transparent