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A Sigma Science Presentation
3D Rocks and Soils
What is a soil?
Soils
What do you think soil is?
Why do you think soil is important?
What do you think soil is made from?
Which of the things below do you think you can
find naturally in soil?
Insects
Tin Cans
Droppings
Plastic
Sand
Water
Stones
Rotting Plants
Leaves
Paper
Most soils contain a mixture of the following:
Insects
Droppings
Water
Rotting Plants
Sand
Stones
Leaves
Why is Soil Important?
Soils are important for growing plants.
Without soils many plants would not grow.
If the soils vanished, then most of the
food we eat would also vanish and we
would starve!
The animals we eat also rely on
soils to grow their food.
Different Soils
Soils can be different depending on the
ingredients they contain and the amount of each
ingredient found in that soil.
Sandy Soils are
found in places that
have a lot of sand.
Sandy Soil Sample
Peat soils contain a lot of
plant bits and are found in
areas that have a lot of
plants.
Peat Soil Sample