SOIL

Soil is made of

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

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Why is soil an important natural resource?

• soil is used to make buildings
• soil can grow crops
• soil comes from bedrock
• soil is full of mircobes

Tags

NGSS.MS-LS1-5

SOIL LAYERS ARE CALLED.......

• MATERIALS
• ORGANIC
• HUMUS
• HORIZONS

THIS LAYER CONTAINS UNWEATHERED SOLID ROCK AND IS BENEATH ALL OTHER LAYERS......

• HORIZON A
• HORIZON O
• HORIZON D
• HORIZON C

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

• A
• B
• C
• O

Tags

NGSS.MS-LS2-3

MIXTURE OF ROCK, MINERAL PARTICLES, AND ORGANIC MATTER...... 

• HORIZONS
• HUMUS
• SOIL
• CLAY

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

WHAT IS HORIZON D ALSO CALLED.......

• HUMUS
• BEDROCK
• ORGANIC MATTER
• INORGANIC MATTER

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

• A
• B
• C
• D

The first layer of soil, called the A horizon is also known as?

• Bedrock

• Parent Material

• Topsoil

• Subsoil

What is humus?

• soil
• organic matter
• loam
• minerals

Tags

NGSS.MS-LS2-3