The rock that is changed by heat and pressure under the earth.
Metamorphic rock
100
What happens when tree roots grow too big under a street or sidewalk.
The tree roots grow so big that they break the sidewalk
100
If you can scratch a mineral with glass, but not a fingernail, the mineral must be:
a) harder than a fingernail
b) softer than a fingernail
a) harder than a fingernail
100
What happens during erosion?
During erosion, rocks are being moved.
100
What is the movement of earth materials down a slope called?
A landslide
200
A rock that is formed when hot magma cools.
Igneous rock
200
This type of weathering is when rocks crash into each other.
Physical weathering
200
What is the name of the list that tells how hard and soft minerals are?
Mohs Scale
200
What happens when water moves rocks after erosion:
a) the rocks get buried on top of each other
b) the rocks are deposited in a river below
c) the rocks go underground and from metamorphic rock
d) the rocks turn into superheroes.
b) the rocks are deposited in a river below
200
What is the name of the natural disaster where land covers a highway with mud and dirt?
A landslide
300
A rock that breaks apart easily because it's made of many small parts.
Sedimentary rock
300
What happens when water is frozen.
The water expands and breaks what's around it.
300
What is the smallest ingredient in a rock called?
A mineral.
300
A delta is formed when sand comes down a river. Where did the sand come from?
The sand came from a mountain near the delta.
300
When water flows over a rock, it makes it smooth in this amount of time. (Slow or Fast)
Slow
400
The process that changes rocks from one rock to another.
The rock cycle
400
This type of weathering happens when acid rain comes into contact with minerals.
Chemical weathering
400
What is the most awesome 4th grade room?
Room 8!
400
When an igenous rock is eroded, it turns into this type of rock.
Sedimentary rock
400
When a volcano erupts, it happens slow, fast, or very fast?
Very fast?
500
Rain and wind are an example of this.
Weathering and erosion
500
Rocks turn into this when they are weathered and eroded
Sediments
500
What is the name of a person who studies the earth?
A geologist.
500
How the Grand Canyon Formed:
a. a glacier eroded the rock and soil
b. a river eroded the rock and soil
c. an earthquake opened the ground
d. a volcano erupted near the canyon