Unit 2Week 10

Seed hitchhikers

How do seeds travel when a plant cannot walk? Watch a burr catch a ride.

A plant makes burrs with tiny hooks. A dog brushes past, a burr catches on its fur, rides far away, then falls off where a new plant may grow.

Keys: Space plays or pauses. Left and right arrows move one sentence. C turns captions on or off.

Read the words