Soil Review

Front

What is soil made of?

Back

Weathered rocks and minerals, dead plants and animals, air and water.

Front

What do we call the layers of soil?

Back

Horizons

Front

The very top layer of soil is mostly made of

Back

Mostly organic material (humus)

Front

Which soil horizon is on the bottom?

Back

bedrock

Front

Which of the following is NOT one of the three layers of soil? Options: topsoil, undersoil, subsoil, bedrock

Back

undersoil

Front

What is the layer of soil just below the topsoil?

Back

subsoil

Front

Decayed organic material in soil is called______.
Options: Litter, Silt, Humus, Clay

Back

Humus

Front

What is the main thing decomposers do for the soil?

Back

Break down and digest dead organisms

Front

Label each soil horizon using the descriptions: Beaker 1, Beaker 2, Beaker 3, Beaker 4.

Back

Beaker 1 = Bedrock, Beaker 2 = Horizon B (subsoil), Beaker 3 = Horizon A (topsoil), Beaker 4 = Horizon C (parent material)

Front

Which layer of the soil profile contains a solid layer of rock?

Back

4