Soil

Soil

Assessment

Flashcard

Science

6th Grade

Hard

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20 questions

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1.

FLASHCARD QUESTION

Front

Humus is made up of what materials?

Back

decomposing plants and animals

2.

FLASHCARD QUESTION

Front

What is soil made of?

Back

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

3.

FLASHCARD QUESTION

Front

Which layer of soil is on the bottom of a soil profile?

Back

bedrock

4.

FLASHCARD QUESTION

Front

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

Back

undersoil

5.

FLASHCARD QUESTION

Front

What is the layer of soil just below the topsoil?

Back

subsoil

6.

FLASHCARD QUESTION

Front

Which of the horizon layers forms LAST?
Options: Weathered or decomposed rock (Horizon C), Subsoil (Horizon B), Topsoil (Horizon A)

Back

Subsoil (Horizon B)

7.

FLASHCARD QUESTION

Front

Why is topsoil darker than all other levels of soil?

Back

It contains more organic matter.

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