Layers of the Earth
Earth Materials
Erosion
Rocks
Mystery
100
This layer of the earth is the outer layer, what we walk on, and what the ocean floors and continents are examples of.
Crust
100
Which items are examples of earth materials. A. Rocks and Trees B. Glasses C. Tree D. Pen E. Calculator
A. Rocks and Trees C. Tree
100
What is the definition for erosion?
The moving of rock from one place to another.
100
Name the 3 different types of rocks.
1. Igneous 2. Sedimentary 3. Metamorphic
100
The earth's crust is made of many pieces called ________.
Plates
200
What is the sun's job?
The sun’s job is to provide light and heat to maintain the temperature of the earth.
200
Which phrase does NOT describe an earth material. A. Unprocessed objects B. Found in nature C. Made by people D. Not manmade
C.
200
What is the definition for weathering?
The breaking apart of rocks into smaller pieces.
200
How are igneous rocks formed?
Igneous rocks are formed from cooled magma/lava.
200
What is caused when there is a vibration or shaking in the earth's crust?
Earthquake
300
This layer of the earth is a dense ball made of two metals, iron and nickel.
Core
300
Which of these items are earth materials. A. Gold B. Crown C. Flowers D. Logs E. Diamond in a ring
A. Gold C. Flowers D. Logs E. Diamond in a ring
300
What are the 4 causes of erosion?
1. Wind 2. Running Water 3. Ice 4. Waves
300
How are metamorphic rocks formed?
Metamorphic rocks are formed when other rocks are changed by heat and pressure.
300
A ________ is a mountain that forms when red-hot melted rock flows through a crack onto the earth's surface.
Volcano
400
Name all three layers of the earth in order from the outside in.
Crust, Mantle, Core
400
What earth materials could be used for fuel?
Coal, Oil, Natural Gas
400
What are 2 methods to prevent or stop erosion?
1. Plant roots 2. Fences
400
How are sedimentary rocks formed?
Sedimentary rocks are formed by building up of sediments and pressure.
400
Fossils are most often found in what type of rock?
Sedimentary Rock
500
This is the thickest layer on the planet, made mostly of solid rock with partly melted rock, and is the second layer.
Mantle
500
What earth materials could be used for building? A. Trees B. Coal C. Humus D. Marble E. Leaves F. Limestone G. Sand H. Water
A. Trees D. Marble F. Limestone
500
If grass was planted on a mound of dirt, how would it effect erosion?
Erosion would occur at a much slower rate because the grass and its roots would help hold the soil in place.
500
Name at least 6 properties we look at when describing a rock.
1. Luster 2. Transparent 3. Effects in water 4. Color 5. Texture 6. Reaction to acid *Mass and Scratch
500
What are 2 examples of a trace fossil?
Tracks, Burrows, Worm Holes, or Droppings
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