Soil Formation

What are the four soil components?

• Sand, rock, humus, air
• Rock, humus, air, water
• Rock, humus, roots, water
• Rock, humus, animals, plants

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

All of the following are plant remains EXCEPT - 

• Dead leaves
• Dried twigs
• Sand Particles
• Seed covers

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

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

• Minerals
• Water
• Coal
• Soil

Tags

NGSS.4-ESS2-1

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

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

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-ESS2-4

Find the word that best describes the following:

To break down or decay living things

• Plant matter

• Weathering

• Decompose

• Trees