Layers of Soil
This layer sits at the very bottom and provides a nice base for all other soil to sit on top of...
bedrock
Human impacts can help the soil stay...
strong and healthy
List the 3 particles of soil from largest to smallest
sand, silt, and clay
Adding ____________ to soil can help add nutrients, creating healthier soil
compost
Special tunnels under the ground are called...
burrows
Layer of soil that is best for growing plants
topsoil
This force washes or blows away soils...
soil erosion
This type of soil particle gets sticky when wet and is bad for water drainage
clay
If we had no healthy soil, people would no longer be able to ___________ on land
farm
(or grow crops)
Earthworms are necessary for the soil because they...
create burrows to bring water, air and nutrients to the rest of the soil
the very top layer with lots of nutrients to give...
humus
Food scraps and other natural material can be turned into...
compost
This soil particle feels rough and gritty
sand
Name two ways we can help soil stay strong and healthy...
-composting
-not using chemicals
-planting more plants
-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...
parent material
Spraying these onto your fruit and vegetable plants may seem like a good idea but actually is not...
pesticides
Particle that feels soft and powdery
silt
Name one reason why soil is important to organisms
it gives organisms a place to live or burrow
Without organisms soil would be bad for farming. Explain why.
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...
subsoil
Planting puts these into the ground, helping to hold on to soil...
roots
The best soil for growing has...
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...
organisms