This activity is easy to do at home with children of any age.

You will need

• Soil
• Moss
• Water (ideally from a stream or pond outside, but tap water will do also)
• Glass jar
• Stones (just a few)

What to do

1. Collect what you need during a walk.
2. Fill the glass jar first with the soil.
3. Then add the stones.
4. Next add the moss.
5. Finally add some water. The moss likes it humid, but be careful not to drown it.
6. Close the jar with the lid.
7. Observe your biosphere carefully over the next days and weeks.