Grade 6 Chapter 10.3

1.

1 point

soil that is blown or washed away from its parent rock

soil

transported soil

parent rock

bedrock

2.

1 point

the layer of rock beneath the soil

bedrock

transported soil

soil

parent rock

3.

1 point

a rock formation that is the source of mineral fragments in the soil

parent rock

bedrock

transported soil

soil

4.

1 point

a loose mixture of mineral fragments, organic material, water, and air that can support vegetation

bedrock

transported soil

parent rock

soil

5.

1 point

soil quality based on the proportion of soil particles

consistency

soil texture

soil structure

infiltration

6.

1 point

the arrangement of soil particles

infiltration

soil texture

soil structure

consistency

7.

1 point

ability of water to move through soil

soil structure

consistency

infiltration

soil texture

8.

1 point

soil's ability to be broken up for farming

infiltration

soil texture

soil structure

consistency

9.

1 point

What is soil's ability to hold nutrients and to supply nutrients to a plant?

soil structure

soil horizons

soil texture

soil fertility

10.

1 point

What do we call the removal of substances from soil due to water passing through it?

leaching

erosion

wedging

infiltration

11.

1 point

What is the layer of soil that often contains the most humus?

topsoil

parent rock

bedrock

horizon

12.

1 point

What is soil that has a pH below 7 called?

acidic

basic

midpoint

neutral

13.

1 point

What is the correct pH for growing plants?

it depends upon the plant

below 7

above 7

7

14.

1 point

Which of the following is a characteristic of tropical rain forests?

They have little plant life.

They have cold soil.

They have rich humus.

They have thin topsoil.

15.

1 point

Which of the following is a characteristic of desert climates?

They experience a lot of leaching.

They get more than 25 cm of rain per year.

They have a high rate of weathering.

They have a low ability to support plant life.

16.

1 point

Which of the following is true of temperate forest and grassland climates?

They have little weathering.

No leaching occurs.

They have very steady temperatures.

They have the most productive soils.

17.

1 point

Which of the following is a characteristic of arctic climates?

They have rich humus.

Soil forms slowly.

They have rapid chemical weathering.

They have more than 25 cm of rain per year.