Formation of Soil

What is the meaning of decompose?

• to rot and break down the remains of plants and animals in smaller pieces.

• a mixture of sand, silt, clay, rock, and humus.

• the breakdown of rocks into very small particles by water, wind, and ice.

Tags

NGSS.MS-LS2-3

What is the meaning of Soil?

• to rot and break down the remains of plants and animals in smaller pieces.

• a mixture of sand, silt, clay, rock, and humus.

• the break down of rocks into very small particles.

What is the meaning of weathering?

• to rot and break down the remains of plants and animals in smaller pieces.

• a mixture of sand, silt, clay, rock, and humus.

• the break down of rocks into very small particles by water, wind, and ice.

Where does soil come from?

• Fossil fuels

• Weathered rocks

• Salt water

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Which one is NOT an example of physical weathering?

• Water weathering

• Chemical weathering

• Ice weathering

• Wind weathering

How many years will rocks break down into small pieces.

• 1 to 90 years

• 10 to 80 years

• 100 to 1000 years

Tags

NGSS.MS-ESS2-4

Where do the nutrients in soil come from?

• rocks and leaves

• dead animals and twigs

• sand and silt

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

How are soil formed?

• decompose

• weathering

• humus

Tags

NGSS.MS-ESS2-4

Which soil is best for growing plants?

• Sand

• Silt

• Loam

• Clay

Tags

NGSS.MS-LS1-5

True or False: Organic matter is materials from things that were alive, like worms.

• True

• False