Soils

Soil consists of... (check all that apply)

• minerals

• air

• organic matter

• living things

• water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following is an example of physical weathering?

• Constant winds blow sand at high speeds against rocks, slowly removing small particles.

• Water flowing over a stream bottom dissolves soft minerals from the rocks and deposits them downstream.

• Leaves fall from trees, are shredded by detritivores into small organic material.

• Animal feces is deposited on the ground or buried in the soil.

If a soil particle is big, meaning it has a larger pore space, how will the water flow?

• Fast
• Slow

Which of the following is NOT one of the three types of soil?

• clay
• sand
• silt
• mud

_______ is the type of soil used most often with plants. It is a mixture of clay, sand, and silt.

• loam
• humus
• mud
• dirt

Tags

NGSS.MS-LS2-3

Humus is.....

• the dead parts of plants and animals in soil.
• A food we eat with pretzels.
• The tiny particles inside of soil
• The roots that come off of a plant and live in soil.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The texture of soil depends mainly on

• the types of plants that grow in the soil.
• the size of the particles in the soil.
• the color of the soil.
• the number of worms in the soil.

The pH scale is a range from:

• 1-7

• 0-14

• 1-5

• 1-20

A(n) ______ is a substance with a pH less than 7

• Acid

• Alkaline

• Base

• Buffer

A(n) _______ is a substance with a pH greater than 7.

• Base

• Acid

• Buffer

• Water