Soil Review | ESL Video

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Play Video: Keynote (Google I/O '18)
[11:14] Soil is not just dirt, it is an important natural (1)_____________ that provides the foundation for life on Earth.
[11:33] Soil comes from weathered (2)_____________ that is broken down and moved through erosion.
[11:40] There are three levels of soil: topsoil, subsoil and (3)_____________.
[11:45] Humus gives soil nutrients and is part of the (4)_____________.
[11:54] There are three types of soil: sand, (5)_____________ and clay.
[12:04] Silt has medium sized (6)_____________ and feels smooth.
[12:09] (7)_____________ has the smallest particles and feels sticky.
[12:14] Loam is a mixture of sand, silt, clay and (8)_____________ and is the best soil for growing plants.
[12:27] Soil holds roots in place and roots help with soil (9)_____________.
[12:31] Worms make nutrient-rich castings. They also create tunnels that allow air and water to reach below the surface. Soil is used in many ways, including making (10)_____________for animals and people.
Soil is not just dirt, it is an important
natural resource that provides the foundation
for life on earth.
Soil is made of rocks, decayed plants and
animals, air and water.
Soil comes from weathered rock that is broken
down and moved through erosion.
There are three levels of soil: topsoil,
subsoil and bedrock.
Humus gives soil nutrients and is part of the
topsoil.
Soil looks and feels different depending on its
properties.
There are three types of soil: sand, silt and
clay.
Sand has the largest rock particles and feels
gritty.
Silt has medium sized particles and feels
smooth.
Clay has the smallest particles and feels
sticky.
Loam is a mixture of sand, silt, clay and humus
and is the best soil for growing plants.
Farmers grow plants in topsoil.
Soil holds roots in place and roots help with
soil erosion.
Worms make nutrient-rich castings.
They also create tunnels that allow air and
water to reach below the surface.
Soil is used in many ways, including making
homes for animals and people.
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