Weathering - Assessment Test Scie 6

Which of the following is not a type of soil?

• minerals

• clay

• topsoil

• sand

Weathering is......

• rocks, grass, and mud.

• the breakdown of rocks into smaller pieces

• the breakdown of wind, rain, and friction

• the weather outside

The organic matter in soil is....

• humus

• bits of rock

• minerals

• all of the above

The four main ingredients of soil are....

• wind, water, ice, and humus

• water, air, rocks, and humus

• worms, ice, rocks, and air

• water, air, rocks, and worms

Decomposition is......

• nature's way of recycling.

• the breaking down of once living plants and animals.

• decaying

• all of the above

What soil is best for growing plants?

• clay

• sand

• mud

• topsoil

All of the following processes help form topsoil except...

• movement of oceans

• decay of plants

• weathering of rocks

• decomposition of animals

The main causes of weathering are all of the following except...

• sun

• water

• ice

• wind

What is soil?

• It is the loose material in which plants can grow in the upper layer of Earth.

• It is the leaf that grows on the plant.

• It is the food that can be found inside the seed.

Humus is:

• the part of soil made up of decayed parts of once-living things.

• a dip that is made of garbanzo beans.

• a bone that can be found in the upper arm.

• a sound people make when their lips are together.