What do plants need to survive?

What is soil made of?
Organic matter
Sand, silt, clay
Weathered rocks
None of the above
All of the above

Which is the largest sized weathered rock?
Sand
Clay
Silt
Organic Matter
Humus

Silt has a silky texture.

What are the four layers of soil?

Which soil types makes up the eastern United States?
Grassland
Desert
Forest
Tropical grassland
Rainforest

Match the soil types with their characteristics
Sand Best for plants
Silt
Clay
Organic Matter
Loam sticky
Grainy
Silky
Dead plants and animals

What are the soil horizons? List in order from top to bottom.

Organic Matter is one of the soil layers

List the types of consistence used to describe soil.

Sticky, silky, and grainy all describe
Texture
Consistence
Color
Fertilizers
Organic Matter

What is located beneath parent material?

‘A’ is the first horizon of soil.

Earthworms play an important role in healthy soil and plant growth.

What is the cycle of nutrients?
A plant takes in nutrients from the soil through its roots. The nutrients are used to help the plant grow. When it dies, it falls to the ground where it decomposes and turns back into nutrients to be used by another plant.

What is located in the ‘O’ horizon?

What is located in the parent material layer?

Topsoil contains which of the following?
Water
Sand, silt, and clay
Organic matter
Air
All of the above

What are nutrients?

I find this format to be helpful for my performance on the quiz.
Yes
No
Not sure
I’ll tell you after the quiz
It is, but I have a better one

With a little more studying tonight, I will be ready to ace this quiz.

Explain the four major soil layers
Top soil (horizon O-very top layer, and A) located at the top and contains large amounts of organic matter/humus— tends to be a small layer, less than 20 cm deep. Sub soil
(horizon B) located below top soil (horizon A), tends to consist of clay, few nutrients, little organic matter.
Parent material (horizon C) consists of slightly broken up bedrock, plants roots rarely penetrate this layer, very little organic matter. Bedrock (horizon R) is hard rock that lies beneath all soil layers.

What is the best type of soil for a garden?
Humus
Sand
Silt
Clay
Loam

Which horizon is needed the most for a healthy garden?
A
B
C
O
R

What is the consistence for desert soil?

Clay is good for growing.

How is soil made?

What is soil?

What is the difference between sand, silt and clay?
Sand: grainy, loose, largest particles
Silt: silky, friable, medium sized particles
Clay: sticky, firm, smallest particles

Describe grassland soil.
Wet and dry seasons but smaller amounts of rain. Large amounts of organic matter and nutrients; good for farming; soil is reddish brown, loose consistence, and silky texture

Describe forest soil hot and cold seasons, large amount of rain to support much tree growth; good farming soil; brown to reddish brown soil color; loose consistence

What is texture?

What is organic matter?

What is composition?

What is the difference between evidence and opinion?