science 4th quarter

it is sticky when wet and has the finest texture. what tyoe of soil it is?

• clay

• loam

• sand

it contains large amount of decaying plants and animals. what type of soil it is?

• clay

• loam

• s

particles are coarse and loose. what type of soil it is?

• clay

• loam

• sand

uppermost layer of the soil

• topsoil

• sub-soil

• parent rock

located below top soil and it is composed of loosely arranged rocks, sand and clay.

• top soil

• sub-soil

• bedrock

composed of rocks that are slowly breaking apart.

• sub-soil

• parent rock

• bedrock

lowest of the soil layers and it is made up of undisturbed large boulders and gravel.

• sub-soil

• parent rock

• bedrock

comes from the decaying plants and animals.

• humus

• soil

• topsoil

refers to the things, materials or condition that remain constant.

• controlled variable

• manipulated variable

• responding variable

refers to the things, materials or conditions that are varied or changed in the experiment/

• controlled variable

• manipulated variable

• responding variable