Rock 1
What are the two problems caused by mining activity?
Why does sandstone absorb a lot of water?
Inside the sandstone, there are round grains that have gaps that allow water to go through
Granite which is an igneous rock has ________ grains
What's "The Rock" real name?
Dwayne Johnson
What's the definition of a rock?
a mixture of different minerals that form grains that fit together.
What give a rock its texture?
Different sizes and shapes of grains
What's the texture of gneiss?
It has bands across it
How many major tectonic plates do we have?
7 major tectonic plates
Give an example of biological weathering
Plant roots growing through rock and breaking them/acid produced by living organisms break the rock
Limestone (Calcium carbonate) react with sulfuric acid forming ______+________+________
calcium sulfuric acid + water + carbon dioxide
What's an erosion?
The process which soil and rocks get worn away and transported by natural forces (wind, water, ice, gravity)
Abrasion (Particles grind against rock surface) form ______ in the streams/rivers.
Two
Define independent variable and dependent variable
Independent variable is something you change and dependent variable is something you measure
What does a native state mean?
When the metal is being found in the rock on its own containing only one element like gold or silver
In the scientific method, what do you replace "experiment" with in geology?
Observation
What processes lead to the formation of sedimentary rock?
Weather, erosion, deposition and cementation
What was the name of the one and only continent Earth had 225 million years ago?
Pangea
When the temperature drop below zero, the water freeze and expand the crack in the rock and when the temperature rise the ice melt and cause the rock to contract. This happens repeatedly until the crack get bigger and eventually the rock breaks.
What's the difference between intrusive igneous rock and extrusive igneous rock?
Intrusive igneous rock contains large crystals because the magma cool down slower underground while extrusive igneous rock has small crystals because magma cool down faster above the ground.
What process lead to the formation of canyons and valleys?
Erosion
Define the term "fossil"
When animals or plants die and they get buried under layers of sediments that turned into sedimentary rock before they can decompose which retaining their original form.
Why should you be careful if you live near the ring of fire?
Earthquake, volcano eruption, tsunami