Rocks & Minerals
True or False?
All three forms of rock can be changed into the other two forms.
True
What does a geologist study?
They study what the earth is made of.
Finish the sentence.
"Erosion is..."
...the removal of soil and rock by wind or water.
What do you call a rock that was made when lava cooled and hardened?
Igneous
What percentage of the earth is covered in water?
70%
What are sidewalks made of?
Cement
What is magma?
Melted rock inside the earth.
"Large waves can wash away coastlines and the nearby soil and rocks. Trees can be uprooted. Sand can be carried inland for miles."
Tsunami
This rock was made when layers of rock built up at the bottom of a river
Sedimentary
Where do ships load and unload goods?
Coastlines
What is used to make pencil lead?
Graphite
Which word means, "the height of a mountain above sea level"?
Elevation
"Wet soil and rock falling down a steep slope can wash away trees and plants. Mud and rocks can fill rivers and canyons below."
Mudslide
This rock was made when heat and pressure changed an igneous rock into another rock.
Metamorphic
If someone is born on July 10, 1987, how old would they be today?
What are the three properties used to describe rocks?
Hardness, Color, and Luster
What is an active volcano?
A volcano that continues to erupt.
"The earth's surface shaking can cause the ground to split apart and leave faults. Roads can be split, and buildings can collapse."
Earthquake
The faces on Mount Rushmore are carved out of what type of rock?
How many teeth are in an adult's mouth?
32
What is humus?
Decaying plant and animal matter that helps plants grow.
What is a dormant volcano?
A volcano that has not erupted in years.
"Large amounts of snow, soil, and rocks sliding down a mountain can destroy trees, fill canyons, and block the flow of rivers."
Avalanche
Why does sedimentary rock have wavy lines on it?
It formed into layers of minerals that got pressed together.
What do you call a cow with no legs?
Ground Beef!