Soil Horizons and Soil Erosion

Using the soil triangle below state what type of soil has 33% clay, 43% silt and 24% sand. (N.b do not assume the arrows drawn in red, yellow and blue relate to this soil). 

What percent of the soil is minerals and nutrients?

• 5%

• 25%

• 45%

• 50%

Tags

NGSS.MS-LS2-1

Soil texture is the look and feel of the soil and is linked to the proportion of                 , silt and clay particles.

Tags

NGSS.MS-LS1-5

Soil may be compared to an open system as it exchanges both matter and energy with the surroundings. Choose the sequence which lists soil storages.

• Water, air, organic matter, organisms, nutrients and minerals

• Air, water, nutrients and minerals, horizons, leaf litter

• Precipitation, water, nutrients and minerals, parent material, plants

• Organisms, weathering, leaching, decomposition, water

Tags

NGSS.MS-LS2-3

The process in which rocks or soil are broken down into small particles as a result of exposure to wind, water or biota is called:

• weathering

• disintegration

• erosion

• deterioration

Tags

NGSS.MS-ESS2-2

Based on the soil texture triangle below, state the name of the soil type which contains 50% of clay, 20% of silt and 30% of sand.

Is soil moisture a biotic or an abiotic factor affecting an ecosystem?

• biotic

• abiotic

Name the transfer that occurs when rainwater penetrates the soil, dissolving and removing minerals such as nitrates and phosphates.

• Leaching

• Condensation

• Erosion

• Infiltration

Tags

NGSS.MS-ESS2-4

Which of the following soil types is very hard to work in hot and dry conditions?

• Sandy soil

• Loamy soil

• Peat soil

• Clay soil

The soil will have the greatest drainage if it has

• A low temperature

• Big particles

• Small particles

• A high content of clay and rocks.