clear glass
opaque
transparent
translucent
frosted glass
translucent
transparent
opaque
wood
translucent
opaque
transparent
Explain how is a shadow formed.
A shadow is formed when an object blocks light from passing through it.
A shadow is always the same size as the object.
True
False
Shadows are formed when light passes through an object.
False
True
The shadow becomes ________ when the object is further away from the light source.
bigger
smaller
The Sun's position in the sky affects the length of the shadow.
True
False
When the Sun is _____ on the horizon, the shadows are long.
low
high
When the Sun is high in the sky, the shadows are much _______.
shorter
longer
We need ________ to be able to see things.
air
light
water
Mirrors create a clear image because they _______ light well.
block
reflect
The black part of the eye is called the _____.
eyelid
iris
pupil
