IB ESS 5.1 Review Questions

1. What is soil erosion?

• A naturally occurring process that affects all land forms

• Type of soil

• A time period

• The wearing away of top soil

Tags

NGSS.MS-LS2-4

Which of the following soil types would erode the least?

• loose, dry soil

• dry soil with leaves

• soil with many roots

The process in which the materials of Earth's surface are loosened & transported away, usually by water or wind.

• runoff

• chemical weathering

• erosion

• biological weathering

Tags

NGSS.MS-ESS2-4

What kind of soil is the best for growing crops?

• loam

• sand

• clay

• silt

Tags

NGSS.MS-LS1-5

__________ is the amount of water a soil is able to hold & is related to a soil material's porosity & permeability.

• Water retention

• Erosion

• pH

• NPK soil test

The very top layer of soil is mostly made of

• Solid rock

• Clay and mineral deposits

• A mixture of minerals and organic material

• Mostly organic material (humus)

Explain the difference between a soil transfer and a soil transformation.

• Transfer involves movement; transformation involves change in composition.

• Transfer involves chemical change; transformation involves physical movement.

• Transfer involves biological processes; transformation involves chemical processes.

• Transfer involves energy exchange; transformation involves nutrient exchange.

List two examples of inputs and two examples of outputs in a soil system.

• Inputs: Water, Nutrients; Outputs: Erosion, Leaching

• Inputs: Sunlight, Air; Outputs: Photosynthesis, Respiration

• Inputs: Seeds, Fertilizer; Outputs: Growth, Harvest

• Inputs: Carbon Dioxide, Oxygen; Outputs: Transpiration, Absorption

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Why is soil texture important?

• It affects soil color

• It influences water retention

• It determines soil temperature

• It changes soil pH

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

What is considered an input in the soil system?

• Leaching

• Erosion

• Precipitation

• Uptake by plants

Tags

NGSS.MS-ESS2-4