Formation of soil

Find the word that best describes the following:

To break down or decay living things

• Plant matter

• Weathering

• Decompose

• Trees

Choose the best answer to the definition:

Dead plant on the forest floor can be called...

• Plant remains

• Weathering

• Decompose

• Trees

What do you call it when you break down rocks into smaller pieces?

• Plant remains

• Weathering

• Decompose

• Trees

Click on all the things that are in soil.

• Dead leaves

• Animal bones

• glitter

• tiny rocks

• rain water

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

• Minerals

• Water

• Coal

• Soil

How would the soil be different in a place where there is little rain? The soil would be-

• Much smaller pieces of rock

• many insects and worms

• a lot of different plants

• less water and dry

How do plants contribute (help) form 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 made a model of-

• how rocks change over time

• the life cycle of plants

• the formation of soil

• how landforms are created

A student is exploring the formation of soil put ricks in a plastic jar of water and shook it. Afterwards, there were smaller pieces of rocks in the jar. The student showed-

• how rocks change over time

• the life cycle of plants

• the formation of soil

• how landforms are created