Science activity for fourth or fifth year students, this activity talks about the soil, covering the composition, types and at the end the quiz.
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SCHOOL: DATE:
PROF: CLASS:
NAME:
THE EXTERNAL PART OF THE TERRESTRIAL CRUST IS CALLED SOIL, AND THAT'S WHAT WE CALL EARTH.
THE SOIL IS CONSTITUTED BY SAND, CLAY AND HUMUS, WHICH IS A MIXTURE OF DECOMPOSITIONING ANIMAL AND VEGETABLE REMAINS.
THE TERRESTRIAL CRUST IS FORMED BY:
SOIL: VERY SMALL PIECES OF ROCKS, ANIMAL AND VEGETABLE REMAINS.
UNDERGROUND: FORMED BY BIGGER ROCKS THAT ARE DECOMPOSING BEFORE TURNING SOIL.
ENTIRE ROCK.
THERE ARE SEVERAL TYPES OF SOIL, THEY ARE:
SANDY: FORMED BY LOOSE EARTH AND NOT SAFE WATER, IT IS A drier TYPE OF SOIL. SO THAT THERE IS A PLANTATION IT MUST BE WATERED.
HUMÍFERO: IT IS FORMED BY VERY SMALL PIECES OF ROCKS AND ANIMAL AND VEGETABLE REMAINS (HUMUS). IT IS GREAT SOIL FOR PLANTING.
CLAY: IT IS FORMED BY CLAY CLODS, IT IS A TYPE OF SOIL THAT IS SOAKED. TO MAKE A PLANTATION IT MUST BE DRAINED.
EARTHWORMS LIVE IN THE GROUND AND TO LIVE THEY DRILL THE GROUND FORMING GALLERIES. IT IS WITH THESE GALLERIES THE SOIL IS MORE AIRY. THE EARTHWORM EXCREMENTS FERTILIZE THE SOIL, THEREFORE, THE SOIL WITH EARTHWORMS IS RICH IN HUMUS.
1) WHAT DO WE CALL EARTH?
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2) WHAT ARE THE ELEMENTS THAT CONSTITUTE THE SOIL?
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3) WHAT IS THE UNDERGROUND FORMED?
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4) HOW DO WE CALL THE SOIL FORMED BY LOOSE EARTH (SAND)?
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5) HOW IS THE TERRESTRIAL CRUST FORMED?
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6) WHAT ARE THE TYPES OF SOIL?
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7) WHAT IS THE BEST SOIL TYPE FOR IDEAL FOR PLANTING? AND WHAT ARE ITS MAIN FEATURES?
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8) WHAT IS THE FUNCTION OF EARTHWORMS IN THE SOIL?
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For ACCESS
At answers are in the link above the header.
