observing change
Post on 24-Feb-2016
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7Observing Change
Growing and
Molting
Have you ever outgrown something?
Just l ike babies, caterpi l lars eat a large amount of food and grow
rapidly.
But their skin is actual ly a r igid
external skeleton cal led an
exoskeleton.
As they eat and grow their soft bodies outgrow
their exoskeleton and have to grow a
new one!
Molting is when an insects sheds their exoskeleton and
grow a new one. The
exoskeleton near the head splits just like clothing that doesn’t fit and it begins to fall off.
How can you tell that the Butterfly has molted?
It is like they leave their clothes on the floor!
You will see a discarded black skin and a rounded head capsule.
You may not see the skin, because the caterpillar sometimes eats the exoskeleton.
You will also noticed the spinning left by the caterpillar after a molt!
•After the molt, the caterpillar’s bristles and exoskeleton are extremely pale.
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