THREE KINDS OF OBJECTS

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Fill in the three types of objects that light can pass through.

  1. Objects that do not let any light to pass through them
  2. Objects that allow some light to pass through them. Some light is absorbed
  3. Objects that let all the light to pass through them
3
c
1
b
a
l
l
e
a
r
-
g
l
a
s
2
m
i
l
k
y
-
g
l
a
s
s