Week 28

March 16, 2015

STANDARDS REVIEW

SOIL– S6E5H1. What does humus provide to soil?

a. Small rock particlesb. Water carrying nutrientsc. Decaying organic matterd. Large course rocks

2. Soil texture is important for plant growth. Describe the texture of fertile soil?

a. Coarse- containing large rock particles

b. Fine- to close together to allow water to flow through.

c. Parent material – having similar rock as the bedrock below

d. Containing a mixture of sand, silt, clay and humus

3. What are the four main components soil is made of?

a. Humus, parent material, air and leaching,

b. Rocks, air, water, and humusc. Sand, silt, clay and waterd. Bedrock, clay, air and water

4. Why is texture so important in determining how soil is able to absorb water?

a. Tightly compact soil is better for planting gardens

b. Fine particles do not allow plant roots to grow

c. Large particles make for smooth texture and better soil

d. Determines how much water can be absorbed

SOIL– S6E5D

1. What does humus provide to soil?

a. Small rock particlesb. Water carrying nutrientsc. Decaying organic matterd. Large course rocks

2. Soil texture is important for plant growth. Describe the texture of fertile soil?

a. Coarse- containing large rock particles

b. Fine- to close together to allow water to flow through.

c. Parent material – having similar rock as the bedrock below

d. Containing a mixture of sand, silt, clay and humus

3. What are the four main components soil is made of?

a. Humus, parent material, air and leaching,

b. Rocks, air, water, and humusc. Sand, silt, clay and waterd. Bedrock, clay, air and water

4. Why is texture so important in determining how soil is able to absorb water?

a. Tightly compact soil is better for planting gardens

b. Fine particles do not allow plant roots to grow

c. Large particles make for smooth texture and better soil

d. Determines how much water can be absorbed

SOIL– S6E5H1. Which layer of the soil profile is also know as parent material?

a. humusb. bedrockc. Weathered rockd. topsoil

2. Which factor does not contribute directly to soil formation?

a. windb. rainc. Freezing waterd. sun

3. What part of the soil consists of decaying organic matter?

a. clayb. bedrockc. humusd. mineral layers

4. Which would have the least amount of nutrients?

a. bedrockb. clayc. topsoild. humus

SOIL– S6E5H1. Which layer of the soil profile

is also know as parent material?

a. humusb. bedrockc. weathered rockd. topsoil

2. Which factor does not contribute directly to soil formation?

a. windb. rainc. Freezing waterd. sun

3. What part of the soil consists of decaying organic matter?

a. clayb. bedrockc. humusd. mineral layers

4. Which would have the least amount of nutrients?

a. bedrockb. clayc. topsoild. humus

SOIL – S6E5H1. What type of resource

is soil?a. Slowly renewable

resourceb. Quick renewable

resourcec. Nonrenewable

resourced. Inexhaustible resource

2. Describe the layers of the soil profile to include how are nutrients carried from one layer to another? Write your answer and explain your thoughts.

SOIL – S6E5H

1. What type of resource is soil?

a. Slowly renewable resource

b. Quick renewable resource

c. Nonrenewable resource

d. Inexhaustible resource

2.Describe the layers of the soil profile to include how are nutrients carried from one layer to another? Write your answer and explain your thoughts. The top layer of the soil profile is called top soil. This is where decayed plants and animals decompose and turn into humus. Nutrients from humus are carried to the next layer called subsoil through a process called leaching. Beneath the subsoil is parent material which is mostly weathered rock that is like the last layer called bedrock. Bedrock is composed of solid rock.

SOIL – S6E5H1.Soils vary throughout the world. Climate, elevation, plant growth; these are just some factors that influence weathering and soil formation. The tundra and the dessert are alike in some ways; different in others. Both the tundra and the dessert have little available water for plant growth.

Imagine you are collecting soil samples from a dessert location and the tundra. What might these soil samples have in common?

a.A very low amount of humusb.Lots of decomposing tree rootsc.Very small, fine-textured soil particlesd.A large amount of sand and very little silt or clay

SOIL – S6E5H1.Soils vary throughout the world. Climate, elevation, plant growth; these are just some factors that influence weathering and soil formation. The tundra and the dessert are alike in some ways; different in others. Both the tundra and the dessert have little available water for plant growth.

Imagine you are collecting soil samples from a dessert location and the tundra. What might these soil samples have in common?

a.A very low amount of humusb.Lots of decomposing tree rootsc.Very small, fine-textured soil particlesd.A large amount of sand and very little silt or clay

IMPACT OF HUMAN ACTIVITY – S6E6.IFossil fuels also cause pollution when they are burned. Burning fossil fuels puts harmful gases, such as carbon dioxide, into the air. Too much carbon dioxide in the atmosphere may contribute to global warming, which is an increase in the Earth’s average temperature.

3. What is the main gas responsible for global warming?

a. Nitrogenb. Oxygenc. Carbon dioxided. Sodium choline

4. What type of damage can our fossil fuels cause?

a. Decrease in severe weather patternsb. Increase in earth’s temperaturec. Increase in sea leveld. Increase in the size of the ozone layer

IMPACT OF HUMAN ACTIVITY – S6E6.IFossil fuels also cause pollution when they are burned. Burning fossil fuels puts harmful gases, such as carbon dioxide, into the air. Too much carbon dioxide in the atmosphere may contribute to global warming, which is an increase in the Earth’s average temperature.

3. What is the main gas responsible for global warming?

a. Nitrogenb. Oxygenc. Carbon dioxided. Sodium choline

4. What type of damage is NOT a cause of fossil fuels?

e. Decrease in severe weather patternsf. Increase in earth’s temperatureg. Increase in sea levelh. Increase in the size of the ozone layer