Why do spiders spin webs?

Answer: To trap flying insects

To trap flying insects ✓ — Correct! Spider webs are sticky traps for catching prey. The silk is incredibly strong for its size—some is stronger than steel! Spiders wait for vibrations that signal trapped insects.

To make homes warmer — Wrong. Webs don't provide insulation. Spiders are cold-blooded and don't need to warm their homes like mammals do.

To store water — Wrong. Spider webs don't store water. Some spiders drink morning dew from webs, but that's not why they build them.