Canada’s Soil Regions

Old Making Connections

Textbook pages 144-148

The 4 main ‘components of soil’:

• Minerals: ________ particles and various nutrients

• This is why _____________ is so important as it moves rocks and materials

• Bacteria and Organic Material: _________ stuff that decays

• Air: provides CO2 and Oxygen to the plants through

the __________

• Moisture: absorbed by plants through their ______

Good Dirt???

• Why this

Combo?

Too much or too Little _____?

What are Leaching and Calcification?

• Leaching:

• Calcification:

Leaching / Calcification

How is topsoil created?

• Dead stuff falls on the earth and _______

• Fertilize with manure/ compost/ chemicals

– OOOPS!!!

Topsoil Erosion Issue

• Dirty 30s– Farmers turned over the soil

• New _______ were used too much!!!• Draught meant no _____to keep top layers of soil• Winds blew the topsoil away!!!

What is loam and why do farmers like it soooo much!!!

• is soil composed of sand, silt, and clay in relatively _______ concentration (Wiki)