3.7A Soil Formation

Front

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

Back

the formation of soil.

Front

How do plants contribute to the formation of soil?

Back

die, decompose and become part of the soil.

Front

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

Back

Soil

Front

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

Back

less water and organic matter.

Front

What is the major component of soil?

Back

weathered rocks.

Front

All of the following are plant remains EXCEPT— dead leaves. dried twigs. sand particles. seed covers.

Back

sand particles.

Front

What question could students be trying to answer by shaking jars of rocks with and without water?

Back

How does water affect the weathering of rocks?

Front

Plants and animals become part of soil when they –

Back

die and decay.

Front

Soil is made out of which of the following? Animal remains, Plant remains, Tiny rocks, All of the above

Back

All of the above

Front

For plants to grow well, soil ___________ must be optimum.

Back

temperature