Soil Horizons + Soil

SOIL LAYERS ARE CALLED.......

• MATERIALS
• ORGANIC
• HUMUS
• HORIZONS

THIS HORIZON IS MADE OF DECAYING LEAVES, TWIGS AND ANIMAL REMAINS/WASTES......

• A
• B
• C
• O

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

WHAT IS HORIZON R ALSO CALLED.......

• HUMUS

• BEDROCK

• ORGANIC MATTER

• INORGANIC MATTER

Tags

NGSS.MS-ESS2-1

WHAT LAYER IS TOPSOIL FOUND IN........

• A
• B
• C
• D

Soil is made of

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

Tags

NGSS.MS-ESS2-1

The very top layer of soil is mostly made of

• Solid rock 
• Clay and mineral deposits
• A mixture of minerals and organic material
• Mostly organic material (humus)

Tags

NGSS.MS-LS2-3

Which layer of soil is on the bottom?

• topsoil
• subsoil
• bedrock
• bottomsoil

Tags

NGSS.MS-ESS2-1

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

• topsoil
• undersoil
• subsoil
• bedrock

Tags

NGSS.MS-ESS2-1

What is the layer of soil just below the topsoil?

• soil
• subsoil
• topsoil
• terrace farming

Tags

NGSS.MS-ESS2-1

Decayed organic material in soil is called______.

• Litter
• Silt
• Humus
• Clay

Tags

NGSS.MS-LS2-3