Soil, the living skin of the land
Answers are for parents and teachers.
1
List the four ingredients of soil and say which are inorganic.
Rock pieces, organic matter, air and water; rock pieces, air and water are nonliving.
2
Draw a flow with arrows showing how a dead leaf becomes food for a new plant.
Dead leaf, decomposers, humus and nutrients, plant takes them up.
3
Explain in two sentences the difference between weathering and erosion.
Weathering breaks rock; erosion carries pieces away.
4
Describe two ways soil is important to people.
It grows our food and holds water; it is a home for living things.
5
Ask a grown-up where in your area the soil is dark and where it is sandy.
Answers differ.