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Light and Shadows (Year 3 Science)
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Waves of light are called light ______.
 
rays
 
rim
 
roll
You can wear ___________ to protect your retina from damage caused by too much light.
 
sunglasses
 
sunscreen
 
sunspot
__________ is the absence of light.
 
Dark
 
Day
A shadow occurs when light is blocked by an ________ object.
 
opaque
 
transparent
 
translucent
The black part of the eye is called the _____.
 
pupil
 
eyelid
 
iris
Mirrors create a clear image because they _______ light well.
 
reflect
 
block
We need ________ to be able to see things.
 
light
 
air
 
water
When the Sun is high in the sky, the shadows are much _______.
 
shorter
 
longer
When the Sun is _____ on the horizon, the shadows are long.
 
low
 
high
The Sun's position in the sky affects the length of the shadow.
 
True
 
False
The shadow becomes ________ when the object is further away from the light source.
 
smaller
 
bigger
Shadows are formed when light passes through an object.
 
False
 
True
A shadow is always the same size as the object.
 
False
 
True
Explain how is a shadow formed.
A shadow is formed when an object blocks light from passing through it.
wood
 
opaque
 
transparent
 
translucent
frosted glass
 
translucent
 
transparent
 
opaque
clear glass
 
transparent
 
translucent
 
opaque
What materials do not allow light to pass through them?
 
opaque
 
transparent
 
translucent
What material allows some light to pass through them?
 
translucent
 
transparent
 
opaque
What material allows all light to pass through them?
 
transparent
 
translucent
 
opaque
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