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4. Dezember 2019

WormJar Project from 3a: What do earthworms do? Why are they important?

 

We filled a huge jar with layers of sand, soil and leaves and put 5 earthworms on top. For 2 weeks, we fed them and kept the earth moist. They did their jobs!  The worms mixed the layers and made many tunnels.  At the end, all worms were alive and well and even bigger than before!

 

Earthworms are important! They keep our soil healthy and fertile so that plants grow well.