Layers of Soil
This layer sits at the very bottom and provides a nice base for all other soil to sit on top of...
what is bedrock
Human impacts can help the soil stay...
what is strong and healthy
List the 3 types of soil from largest to smallest
what is sand, silt, and clay
Adding ____________ to soil can help add nutrients, creating healthier soil
what is compost
Special tunnels under the ground are called...
what are burrows
what is topsoil
This force washes or blows away soils...
what is erosion/what is soil erosion
This type of soil particle gets sticky when wet and is bad for water drainage
what is clay
If we had no healthy soil, people would no longer be able to ___________ on land
what is farm
(or grow crops)
Earthworms are necessary for the soil because they...
the very top layer with lots of nutrients to give...
what is humus
Food scraps and other natural material can be turned into...
what is compost
This soil particle feels rough and gritty
what is sand
Name two ways we can help soil stay strong and healthy...
What is composting, not using chemicals, planting more plants and respecting or adding organisms to the soil
Name two insects found in the soil...
what are earthworms, spiders, ants, earwigs, beetles, centipedes, potatobugs
This layer supports you like someone at home...
what is parent material
Spraying these onto your fruit and vegetable plants may seem like a good idea but actually is not...
what are pesticides
Particle that feels soft and powdery
what is silt
Name one reason why soil is important to organisms
What is it gives organisms a place to live or burrow
Without organisms, would the soil be good or bad for farming? Explain.
what is bad for farming because there would be no organisms to create burrows for bringing air, water and nutrients to the soil
A sandy layer that we used graham crackers to represent...
what is subsoil
Planting puts these into the ground, helping to hold on to soil...
what are roots
The best soil for growing has...
what is a good mixture of all three types of soil
What is the main way healthy soil benefits people’s lives?
Healthy soil helps us grow food, which means people can have enough to eat and access healthy, fresh food
Insects, animals and bacteria are grouped together and called...
what are organisms