Fourth Six Weeks Science Review

Fourth Six Weeks Review Science

​We will cover:

1. Soil

2. Weathering

3. Erosion

4. Deposition

5. Natural Resources

Soil

​There are 4 types of soil:

1. Sand

2. Silt

3. Clay

4. Loam

​Sand

• Brightly Colored soil

• Largest particle size

• Rough texture

• Retains the least amount of water

• Found in deserts and on beaches

​Silt

• Reddish-brown Colored soil

• Medium particle size

• Soft texture

• Retains some water

• Found in swamps and forests

​Clay

• Reddish-dark brown Colored soil

• Small particle size

• Soft texture

• Retains a lot of water

• Found in farms

• Creates puddles

• Not good for deep rooted plants

​Loam

• Brown-Dark Brown Colored soil

• Mixed particle size

• Soft texture

• Retains a fair amount of water

• Found in gardens

• A mixture of clay, silt, and sand

Multiple Choice

Who Am I?

I am bright colored and have the largest particle size.

• Sand

• Silt

• Clay

• Loam

Multiple Choice

Who Am I?

I retain a lot of water and you can find puddles on top of my soil.

• Sand

• Silt

• Clay

• Loam

Multiple Choice

Potting soil or loam (mixture of sand, clay, and silt) is best used in...

• Farming

• Deserts

• Gardening

• Swamps

Multiple Choice

Which type of soil would not be good for deep rooted plants?

• Sand

• Silt

• Clay

• Loam

Humus

Nutrient-rich material made from the remains of plants and animals.

Helps certain soils like loam to retain water better.

Multiple Choice

Humus can help loam to...

• Retain less water

• Retain more water

• Turn mushy

• It has no effect on loam

​How to Distinguish Soil

You can distinguish the soil by:

• Color

• Grains/particles (Texture)

• Water Retention

Multiple Choice

The size of the grain tells us...

• Color of Soil

• Retention of Soil

• Texture of Soil

• Quality of Soil

Weathering, Erosion, & Deposition

Weathering: The breaking of larger rocks into smaller pieces called sediments.

Erosion: The movement of sediments from one location to another.

Deposition: The dropping of sediments as the motion of the wind or water slows or comes to a stop.

Multiple Choice

Look at this picture. What is happening to the rock?

• Weathering

• Erosion

• Deposition

Multiple Choice

Look at this picture. What is happening to the rocks?

• Weathering

• Erosion

• Deposition

Multiple Choice

Look at this picture. The rocks ended up in the river. What process took place?

• Weathering

• Erosion

• Deposition

Multiple Choice

Look at these two rocks. Which one has been more weathered?

• Rock A

• Rock B

Multiple Choice

Look at the following picture. What caused the after picture?

• Weathering

• Erosion

• Deposition

Agents of Change

There are three types of agents of change:

1. Wind

2. Water

3. Ice

They can all cause weathering, erosion, and deposition.

Multiple Choice

All are agents of weathering and erosion except...

• Wind

• Ice

• Water

• All are agents of weathering and erosion

​Wind

Wind can cause weathering, erosion and deposition.

It can create landforms known as sand dunes.

Multiple Choice

Which agent of change creates sand dunes?

• Wind

• Water

• Waves

• Ice

Water

Water can cause weathering, erosion, and deposition.

Water in streams can deposit soil and rocks at the bottom of the stream.

Floods can cause rocks to erode and move from one place to another.

Rivers can form canyons and v-shaped valleys.

Waves can weather rocks and cliffsides overtime.

Acid rain can also cause weathering.

Multiple Choice

When waves hit rocks, what will happen to the rocks?

• They won't change

• They will be deposited somewhere else

• They will weather down overtime

• They will erode and create mud

Multiple Choice

How was the grand canyon formed?

• By Rain

• By Sea

• By rivers

• By Wind

Multiple Choice

Soil moved by floods of rain is an example of

• Weathering

• Erosion

• Deposition

Multiple Choice

Which scenario does NOT cause weathering?

• Acid Rain

• Floods

• Rivers

• All cause weathering

Multiple Choice

Where would the most soil or rocks be deposited in a stream?

• At the top of the stream

• In the middle

• At the bottom of the stream

Ice

Ice can cause weathering, erosion, and deposition.

When water freezes and unfreezes in rocks it can cause the rocks to weather.

Glaciers create a scraping sound when they are weathering rocks.

Multiple Choice

When Glaciers weather rock they...

• Run

• Scrape

• Crunch

• Munch

Multiple Choice

When water freezes into rock and unfreezes, what process is occurring?

• Weathering

• Erosion

• Deposition

Renewable

Renewable energy is a natural resource that never runs out or replenishes quickly.

Examples include:

• Water

• Air/Wind

• Animals

• Plants

• Sun

Multiple Choice

Which of the follow is NOT Renewable Energy?

• Plants

• Animals

• Air

• Oil

Multiple Choice

Solar ovens are powered by the...

• Sun

• Water

• Wind

• Nuclear

Multiple Choice

All are sources of renewable energy except?

• Solar Panels

• Wind Turbines

• Geothermal Plants

• Coal Furnaces

​Nonrenewable

Nonrenewable Energy is a type of natural resource that cannot be replaced once it is used or runs out.

Examples include: Fossil Fuels

• Coal

• Oil

• Natural Gas

Multiple Choice

Which of the following is NOT Nonrenewable Energy?

• Coal

• Oil

• Natural Gas

• Water

Multiple Choice

A bus burns

• Sun

• Coal

• Oil (Gasoline)

• Thermal

Multiple Choice

Riding your bike and bus are examples of conserving

• Coal

• Energy

• Gasoline

• Plants

Renewable vs Nonrenewable

Similarity: They are both natural resources.

Difference: Renewable Resources can be replaced quickly and nonrenewable resources cannot be replaced once used.

Multiple Choice

What is the difference between renewable energy and nonrenewable energy?

• Renewable is humanmade and nonrenewable is natural

• Nonrenewable is humanmade and renewable is natural

• Renewable can be replaced quickly and nonrenewable cannot be replaced once used

• Nonrenewable can be replaced quickly and renewable cannot be replaced once used