SOIL

HI TODAY WE WILL LEARN ALL ABOUT SOIL FIRST WE WILL SEE TYPES OF SOIL THEN LAYERS OF SOIL

BUT THE MOST IMPORTANT THING IS WHEN WHEATERING OF ROCKS PLANTS AND ANIMALS ARE MIXED TOGHETER A THIN LAYERS OF SOIL FOARMS

TYPES OF SOIL

GRAVEL- GRAVEL IS A SAND OF ROCKS THAT HOLDS LESS WATER BECAUSE THERE ARE GAPES BETWEEN THE STONES

SANDY- SAND DRAINS WATER FASTER

CLAY- IS VERY STICKY SO IT HOLDS WATER WELL

LOAM- IS A MIXTURE OF CALY AND SAND SO IT HOLDS WATER WELL

NOW LETS SEE LAYERS OF SOIL

FIRST LAYER IS CALLED TOPSOIL - IT IS RICH IN HUMUS AND HAS WATER

SECOND LAYER IS CALLED SUBSOIL- IT CONTAINS SMALL ROCKS AND HAS LESS WATER

THIRD LAYER IS CALLED BEDROCK- IT CONTAINS LARGE ROCKS AND DOES NOT HAVE MUCH WATER

SO THIS IS ALL ABOUT SOIL