Types of soil

Which type of soil has the largest particles/grains?

• sand
• silt
• humus
• clay

Which of the following best describes soil erosion?

• A.  the breakdown of soil 
• A.  the improvement of soil
• A.  the addition of soil
• A.  the movement of soil by wind or water

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Where does most of the water go when it rains?

• in the ocean
• in the rivers
• in the gutters
• it absorbs into the soil

Tags

NGSS.MS-ESS2-4

The breaking down of rocks into smaller pieces.

• erosion
• weathering
• sediment
• sand

What does humus contain?

• sand
• glass
• clay
• decayed plants and animals

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-LS1-5

NGSS.MS-LS2-3

Many plants cannot grow in sandy soil. Why is this true?

• Water passes through the sandy soil too fast

• Oxygen cannot pass through sandy soil.
• Roots cannot easily push through clay soil.
• Sandy soil has too many nutrients.

Tags

NGSS.MS-LS1-5

How does soil form?

• Soil forms as rock is broken down by weathering and mixed with other materials on the surface.
• Soil forms when someone takes a shovel and breaks rocks, and then mixes it with dirt.
• Soil forms when an you throw rocks and dirt into a pond.
• Soil forms when you mix water and rocks together, then add air.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2