1. Introduction to Soil

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Tags

NGSS.MS-ESS2-1

What does the size of the soil particles determine?

• pH

• mineral composition

• texture

• horizon posiition

What's the composition of soil?

• air, water, minerals

• minerals, decayed organic materials, rock particles

• air, water, decayed organic materials, rock particles, minerals

• decayed organic materials, rocks particles, and minerals

Which of the following is NOT a property of soil?

• Color

• Texture

• Where it's located

• Ability to retain water

Depending on how soil is formed, it's color can be....

• yellow

• red

• black

• all of the above

The main causes of weathering are all of the following except...

• sun

• water

• ice

• wind

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

Tags

NGSS.MS-ESS2-2

Topsoil is dark in color because it...

• undergoes a lot of chemical weathering.

• has a large amount of organic material.

• is full of dark rocks.

• contains a lot of worms.

Factors that influence soil formation in a region include:

• average temperature

• amount of rainfall

• type of bedrock

• all of the answers are correct

a layer of soil that differs in color and texture from the layers above or below it

• soil horizons

• soil

• organic matter

• decomposers