It's important for pupils to know about soils. Have you tried Earthlearningidea 'Permeability of soils; the great soil race'? Why do some soils let water through faster than others? If you wanted to make a football field, which would be best - a soil that lets water flow through quickly or a soil that holds the water? What problems might there be if water ran through a soil very quickly? If you wanted to grow vegetables, which would be best, a quick flow soil, or a slow flow soil or a medium flow soil? Find out the answers by setting up this simple activity.
Read the post before this to see what worms can do to layers of soil in only 15 days.
Send us your soil activities and we will publish them.