CBA #3 Review

The weathering of rocks into small pieces forms what natural resource?

• minerals

• water

• coal

• soil

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

How would the soil be different in an area that gets very little rainfall? The soil would contain –

• much smaller pieces of rock.

• many insects and worms.

• a greater variety of plants.

• less water and organic matter.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

How do plants contribute to the formation of soil? Plants -

• cover the soil and shade it from sunlight.

• die, decompose and become part of the soil.

• use soil to grow and develop over time.

• support the animal life in the soil.

A student made a mixture of sand, tiny rocks, small twigs, and some leaves. This student has modeled —

• how rocks change over time.

• the life cycles of plants.

• the formation of soil.

• how landforms are created.

A student exploring the formation of soil put rocks in a plastic jar of water and shook it. Afterwards, there were small pieces of broken rock in the water. What process in the formation of soil does this model?

• Weathering of earth materials

• Decay of plant matter

• Formation of various minerals

• Mixing of water and air

Tags

NGSS.MS-ESS2-2

Rocks near the ocean get broken into smaller pieces. What causes this change to these rocks?

• Leaves falling from trees

• Clouds forming in the sky

• Water crashing against the rocks

• Salt dissolving in the water

Tags

NGSS.MS-ESS2-2

Which of the following processes will most likely contribute to the development of soil?

• Volcanic eruptions that make new land

• Building up of snow in very cold areas

• Migration of animals to warmer climates

• Breaking down of rock by wind, water, and ice

Soil is composed of all of these natural materials EXCEPT -

• weathered rock

• plant matter

• plastic substances

• animal remains

Plants and animals become part of soil when they –

• die and decay

• produce offspring

• grow and develop

• take in nutrients

Tags

NGSS.MS-LS2-3

One component of soil is decayed plant and animal remains, but the major component of soil is –

• fossil fuels

• weathered rocks

• iron ore

• salt water