soil(2)
TRANSCRIPT
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SOILTypes of soil
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Sand
• Sand particles are big in size.
• Dry soil.
• Doesn’t hold much water.
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Silt
Silt is very small, broken pieces of rock. It is larger than clay, but smaller than sand.
Sand ------------Silt---------------Clay
(larger particles) (smaller particles)
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CLAY• Clay holds water well.
• Clay has NO air between particles.
• It is sticky and can be shaped when it is wet.
• Clay is used for brick houses.
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LOAM• Loam is a mixture of sand, silt and clay.
• It is best for plants
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Natural Resources
• Made by NATURE
• Cannot be replaced
• Must be conserved (saved)!
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EROSIONis the movement of soil and rock to
new places.
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Ways to Conserve Soil
• Plant trees & grassto prevent soil erosion
• Healthy farming
1) Keep soil clean
2) Add nutrients to the soil
• What else can you do to conserve soil?
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Ways to Conserve Soil
• Plant trees & grassto prevent soil erosion
• Healthy farming
1) Keep soil clean
2) Add nutrients to the soil
• What else can you do to conserve soil?