Want a Cozy, Free Home? Ask This Caterpillar How

From Deep Look

Want a Cozy, Free Home? Ask This Caterpillar How
5 min3rd4th5th6thScience
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Summary

A bagworm caterpillar builds a portable house out of silk and bits of twig, then drags it everywhere it goes. Deep Look shows how this tiny builder makes armor it can hide inside.

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Teaching resources

Discussion questions

Talk about it

A bagworm caterpillar spins silk and glues on plant pieces to make a tough, camouflaged case. It can pull its whole body inside when danger comes -- a home and a suit of armor the caterpillar makes itself.

  1. What does the bagworm caterpillar use to build its case?
  2. How does carrying a case help the caterpillar stay safe?
  3. Why is a case made of twigs good camouflage?

Quick work-a-long

Vocabulary: silk, case, camouflage, structure.

Try it: Roll a small tube of paper and tape on bits of leaf or thread. Write how the bagworm builds a case to hide inside.