What is soil made of?
minerals and weathered rock
The top layer of soil is called
topsoil
Below the topsoil is
subsoil
Below the subsoil is
bedrock
What is bedrock?
rock that has not been weathered
Soil with a mix of sand, silt and clay is called
loam
Which soil holds the most water?
clay soil
Which soil holds the least water?
sandy soil
In which soil do most plants grow best?
loam
A ______ is a useful material found in nature
natural resource
What keeps soil healthy?
reduce soil erosion
_____ are also a natural resource
Plants
A thing that is needed by people is a
natural resource