Show:
Vocabulary
Rocks
Minerals
Natural Disasters
Weathering
100
Most of the earth's what is made of iron.
What is the core of the earth.
100
When magma cools and hardens, it forms this type of rock.
What is igneous rock.
100
True or False: The streak of a mineral is always the color of the outside mineral.
False
100
Trapped gasses can have enough pressure to blow apart a side of a volcano. What two gasses are often mixed with lava as volcanoes erupt?
Water Vapor and Carbon Dioxide
100
This type of weathering is caused by gravity breaking rocks apart into smaller pieces.
What is mechanical weathering.
200
The thinnest of Earth's layers is this.
What is the earth's crust.
200
When rocks are squeezed and heated at very high temperatures, they can be changed into this type of rock.
What is metamorphic rock.
200
This word means the way light is reflected by a mineral's surface.
What is luster.
200
Where do most earthquakes happen? (It's not a name of a place.)
Along a fault line where two plates meet.
200
This type of weathering causes rocks to change through reactions.
What is chemical weathering.
300
Ice, plant roots, wind and temperature changes are all types of this kind of weathering.
What is mechanical weathering.
300
Sandstone is what type of rock?
What is a sedimentary rock.
300
The Mohs scale goes from 1-10. What does it measure?
What is the hardness of a mineral.
300
Where do most volcanoes occur? (Not the name of a place.)
Along fault lines where plates meet.
300
What is the difference between weathering and erosion?
Weathering breaks rocks apart where they are. Erosion takes the pieces of rock away.
400
Large sections of Earth's crust called _________ are constantly moving into, away from and past each other.
What are plates.
400
What type of rock forms when layers of materials and rock particles settle on top of each other and then harden?
What is a sedimentary rock.
400
Name two ways that we use the word mineral.
Minerals in our food. Minerals found in nature.
400
How does new land form?
Volcanoes erupt on the ocean floor and the lava builds up and cools until it reaches the surface of the water.
400
Name one type of mechanical weathering.
Frost wedging, thermal expansion, pressure release
500
The top part of Earth's ___________, together with the crust, form the lithosphere.
What is mantle.
500
What type of rock is a conglomerate (like David's rock).
What is metamorphic.
500
Name 4 of the 6 ways that minerals can be classified (according to the book.)
What are magnetism, hardness, luster, shape, streak and texture.
500
Describe how earthquakes happen.
* plates slide past each other and cause vibrations
500
Name one type of chemical weathering.
Oxidation, solution, carbonizaton