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SCIENCE EDUCATION MATTERS
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3.E.4  Earth Science:  Earth's Materials and Processes

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This is a picture from the grand canyon. Can you find the Colorado River that runs through the canyon?
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3.E.4A.1  Soils, Rocks, and Minerals
Enjoy this video.  While you enjoy, answer these questions.

1.  What are the 4 main things that make up dirt?

2.  The narrator says soil is where plants get their food.  Is she right about that?  What word should she have used to make her statement more true and less confusing?

3.  What is humus?

4.  If we dug a deep hole and could see all of the layers of soil, what would the layers be from top to bottom?



​If you are interested in soils, try this simple soil test. 
​To do it you will need the following: 
  • a jar (a lid is helpful)
  • some soil
  • some water
Study the screenshot from the video:
How many millimeters of sand?  ______

How many millimeters of silt? ______

​How many millimeters of clay? ______​​
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A few calculations reveal that the
​soil contained:
5% clay     20% silt    75% sand 
​
How would you you classify the soil based on the triangle below?

What else can you learn from this triangle?​
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There are 3 basic types of rocks: Igneous, Metamorphic, and Sedimentary.   Watch the video to learn more.   Complete the graphic below in your Science journal.  
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Igneous
​Rocks
Sedimentary Rocks
Metamorphic Rocks
What rocks can you find outside near your home? 
​ How would you classify them?


​Now that you have learned about soil and rocks, what do you know about minerals?   Watch the video.  Copy and answer the questions in your Science journal.

1. How are rocks and minerals related?

2. What are some examples of rocks?

3. What are some examples of minerals?

​
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One way in which minerals are classified is by their hardness.  Answer the questions below in your Science journal.

1. Which is the softest mineral shown here?
2. Which mineral is almost as hard as diamond?
3. Which 2 minerals could be scratched by someone's fingernail?
4. Which mineral would be able to be scratched by a steel nail, but would be too hard to be scratched by a knife or glass plate?
5. Which 2minerals are too hard to be scratched by even a masonry drill bit? 

Another way in which minerals are classified is by their luster, or shininess.  Minerals can be classified in the following ways:   
  • Glassy - shiny like glass
  • Pearly - silky like a pearl
  • Metallic - shiny like a metal
  • Dull - not shiny at all
In your Science journal, make a chart in which you categorize the minerals shown here according to their luster.  If you need a better picture, Google the mineral then click images. 

3.E.4A.3  Natural Resources
The Earth is made of things like soil and rocks and water and air.  Humans and other living things need these things to help them function.  We call these items natural resources.  Natural resources can be renewable, which means they can easily be replaced and we don't typically run out of them.  Other natural resources, such as coal and oil, are nonrenewable because they take many years to form.  If we are not careful, we can run out of them before they can be replaced.  
Watch this video about Natural Resources. 
​In your Science journal, make the graphics below and complete them based on what you learn in the video.    ​
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Label the natural resources in the photo. What natural resources do you see in the room where you are sitting?
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What kind of resources are these? List them, and more, in your notebook. What makes these resources replaceable?
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What kind of resources are these? List them, and more, in your notebook. Why are these not considered to be replaceable?

3.E.4B.1  Characteristics of Earth's Landforms   
3.E.4B.2  Earth's Changing Landscape                                                                                                                                   
Teachers Only
Watch this video.  You may need to pause it to write down certain information. 
​Complete the assignments below in your Science Journal. 
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Sketch this diagram in your Science notebook. On your diagram, label the 7 continents and 5 oceans.
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This graphic is from https://www.exploringnature.org/db/view/Landforms-and-Waterways As best you can, sketch this in your Science journal and label the landforms as you watch the video.
The video mentioned Earth's changing landscape. 
​How do weather, erosion and gravity change Earth's surface?
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Check your answers here. 
Think about your travels, which of these landforms have you seen? 
​Think about your neighborhood.  Which of these landforms are nearby?




​If you have access to a printer, print this page, glue it in your Science journal. 

3.E.4B.3   Ways in which natural events change the environment.
3.E.4B.4   Ways in which we can prevent or reduce damage from natural events. 
Natural events such as fires, landslides, earthquakes, volcanic eruptions, and floods happen on Earth everyday.  These events can disrupt human lives.  Engineers work to develop ways in which lives can be saved and damage to property can be reduced.   

Teachers, this is a great time for some class discussion.  Consider having students build models and testing them agains wind, shaking, water, etc.
This video has no sound. 
You see the results of heavy rainfall resulting in flooding in Miami, Florida.  What do we do to keep people safe during a flood?
What more could be done to keep the people safe?
An earthquake in Sparta, NC was felt all the way in South Carolina during August 2020.  Did you feel it? 

There is no warning system for an earthquake, so how can we keep people safe? 
How many years has it been since an earthquake of this magnitude has struck this area?
You probably don't live in Hawaii, but there are people who live there. 
What can be done to keep people safe when a volcano erupts? 
​The narrator of the video talks about sulfur dioxide in the air and magna accumulations - how can people be kept safe during a natural event such as this?
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This website has been developed and maintained by
Kimberly G. Massey, K-12 Science Instructional Specialist
for Rock Hill Schools of York County, South Carolina.


Telephone

803.981.1886

Email

kmassey@rhmail.org
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