Soil + Plant Review

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

• clay
• sand
• silt
• mud

When there are not enough plants to hold topsoil in place, water and  _______ carry the topsoil away, leaving the subsoil exposed

• sunlight
• birds
• magnetic fields
• wind

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Which of the following is the largest particle in soil?

• sand
• silt
• humus
• clay

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

• Sandy soil does not hold enough water.
• Oxygen cannot pass through sandy soil.
• Roots cannot easily push through clay soil.
• Sandy soil has too many nutrients.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

Which layer of soil are these roots growing in?

• subsoil
• topsoil

Wind blowing dirt and sand through the air is an example of...

• weathering 
• erosion

Soil is made of

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

What is the layer of soil just below the topsoil?

• soil
• subsoil
• topsoil
• terrace farming

Layers of soil are also known as:

• Soil Profiles
• Soil Horizons
• Soil sheets
• Soil cores

What is the name of Horizon 1?

• Subsoil 
• Topsoil
• Bedrock 
• Parent Rock