The Bombardier Beetle And Its Crazy Chemical Cannon

From Deep Look

The Bombardier Beetle And Its Crazy Chemical Cannon
3 min4th5th6thScience
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Summary

When threatened, the bombardier beetle mixes chemicals inside its body and blasts a boiling-hot, stinging spray at attackers. Deep Look reveals the built-in 'cannon' that makes this defense possible.

Viewer safety

Ages 7+Mild peril

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Teaching resources

Discussion questions

Talk about it

The bombardier beetle stores two chemicals separately, then mixes them in a special chamber to make a hot, stinging spray. Its internal structure is a tiny chemical cannon.

  1. How does the beetle make its hot defensive spray?
  2. Why does the beetle keep its two chemicals apart until it needs them?
  3. How does this defense help a small beetle survive against bigger animals?

Quick work-a-long

Vocabulary: chemical, chamber, defense, react.

Try it: Think of baking soda and vinegar fizzing when mixed. Write how the beetle keeps ingredients apart until it's time to 'fire.'