Savvas 6th Grade Weathering and Soil Test Modified

Last updated almost 3 years ago

22 questions

1

2

3

2

1

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Savvas 6th Grade Weathering and Soil Test Modified

Last updated almost 3 years ago

22 questions

1

Some plants produce acids that result in _______  weathering.

1

Sandy topsoil is said to be _______  because water drains quickly through the spaces between the sand particles.

1

The actions of animals most commonly can cause the type of weathering known as _______ .

1

Water and wind can _______  soil, or carry it away.

1

2

Using the above diagram, Which layer of soil in the illustration is made up only of partly weathered rock? What is this layer called?

3

Describe three ways farmers can prevent nutrient depletion.

2

How are landslides and mudflows similar? How are they different?

1

Why is soil so important to people and living things?

1. The most important factors in determining the rate of weathering are

carbon dioxide and acid rain.

abrasion and acids from plant roots.

rock type and climate.

When earthworms add their wastes to the soil, then die and decay in the soil, they are contributing to the formation of

silt 

litter

humus

clay

The process of restoring an area of land to a more natural, productive state is called

desertification.

 nutrient depletion.

land reclamation.

Landslides, mudflows, slump, and creep are all examples of

mechanical weathering

mass movement

soil formation

Granite lasts a long time when it is used for building in areas where

the climate is mostly cool and dry.

acid rain is common

climate is hot and rainy

The process by which natural forces move weathered rock and soil from one place to another is called

abrasion

deposition

erosion

Geologists infer from the rounded, eroded shapes of the Appalachian Mountains that

the principle of uniformitarianism does not apply.

the mountains are made of soft rock

the mountains have been eroding for millions of years.

The type of soil called loam is made up of

pure humus

mostly clay

nearly equal amounts of silt, sand, and clay

sand and gravel

Some plants produce acids that result in _______  weathering.

Sandy topsoil is said to be _______  because water drains quickly through the spaces between the sand particles.

The actions of animals most commonly can cause the type of weathering known as _______ .

Water and wind can _______  soil, or carry it away.

Creep is very slow movement of sediment down a slope.

True

False

To restore soil’s fertility, a farmer might plant legumes as part of a soil conservation technique called nutrient depletion.

True

False

A type of land use called mining involves the removal of nonrenewable resources from the land

True

False

After chemical weathering, the chemical makeup of the weathered rock is the same as that of the original rock.

True

False

Most of the work of mixing humus within the soil is done by

fungi

ants 

earthworms 

bacteria

Plowing removed the grass from the Great Plains and exposed the soil. What effect did this have when a drought struck the Great Plains during the 1930s?

It had no effect.

It reduced the soil's fertility.

It helped to cause the Dust Bowl. 

It allowed the soil to hold mositure better.

Using the above diagram, Which layer of soil in the illustration is made up only of partly weathered rock? What is this layer called?

Describe three ways farmers can prevent nutrient depletion.

How are landslides and mudflows similar? How are they different?

Why is soil so important to people and living things?

1. The most important factors in determining the rate of weathering are

carbon dioxide and acid rain.

abrasion and acids from plant roots.

rock type and climate.

When earthworms add their wastes to the soil, then die and decay in the soil, they are contributing to the formation of

silt 

litter

humus

clay

The process of restoring an area of land to a more natural, productive state is called

desertification.

 nutrient depletion.

land reclamation.

Landslides, mudflows, slump, and creep are all examples of

mechanical weathering

mass movement

soil formation

Granite lasts a long time when it is used for building in areas where

the climate is mostly cool and dry.

acid rain is common

climate is hot and rainy

The process by which natural forces move weathered rock and soil from one place to another is called

abrasion

deposition

erosion

Geologists infer from the rounded, eroded shapes of the Appalachian Mountains that

the principle of uniformitarianism does not apply.

the mountains are made of soft rock

the mountains have been eroding for millions of years.

The type of soil called loam is made up of

pure humus

mostly clay

nearly equal amounts of silt, sand, and clay

sand and gravel

Creep is very slow movement of sediment down a slope.

True

False

To restore soil’s fertility, a farmer might plant legumes as part of a soil conservation technique called nutrient depletion.

True

False

A type of land use called mining involves the removal of nonrenewable resources from the land

True

False

After chemical weathering, the chemical makeup of the weathered rock is the same as that of the original rock.

True

False

Most of the work of mixing humus within the soil is done by

fungi

ants 

earthworms 

bacteria

Plowing removed the grass from the Great Plains and exposed the soil. What effect did this have when a drought struck the Great Plains during the 1930s?

It had no effect.

It reduced the soil's fertility.

It helped to cause the Dust Bowl. 

It allowed the soil to hold mositure better.