What's in Soil?

Find the parts of soil: bits of rock, humus, water, and air.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 9

Welcome to the Soil Lab! Soil is the loose top layer of the Earth, where plants grow.
Soil is a mix. It has tiny bits of rock, water, and air between the bits.
It also has humus: bits of dead leaves, plants, and animals that have broken down. Humus makes soil dark and gives plants nutrients.
Lots of living things live in soil too, like earthworms, which mix it and let air in.

Georgia Standards of Excellence in Science:

S3E1.b — Plan and carry out investigations to describe properties (color, texture, capacity to retain water, and ability to support growth of plants) of soils and soil types (sand, clay, loam).