Igneous Rock
Metamorphic Rock
Sedimentary Rock
Geologic Time
Potpourri
100
Igneous rocks are formed when _____________ cools and then _______________ ?
What is When MAGMA cools and the HARDENS
100
What does "metamorphism" mean?
What is To change shapes
100
What is sediment?
What is particles of rock, sand, soil, and plant and animal remain
100
How old do scientists believe that the earth is?
What is over 4 billion years old
100
Rock models show the oldest rocks on the (top/bottom)?
What is bottom
200
Name the two types of igneous rocks?
What is Intrusive and Extrusive
200
What causes minerals in rocks to chemically react with each other to form new minerals?
What is heat and pressure
200
What causes sedimentary rocks to form?
What is when sediment compacts in layers without heat or pressure
200
The earth's changes over time are recorded where?
What is in the earth's crust
200
Which type of scientist studies fossils to see what earth was like millions of years ago?
What is Paleontologists
300
The texture of an igneous rock depends on how long this takes?
What is how long the magma takes to cool and harden
300
Where do rocks change?
What is deep in the Earth
300
What are the preserved remains of plants and animals called?
What is fossils
300
Which scientists study the earth's history?
What is geologists
300
What are fossils?
What is The remains of plants and animals preserved in rocks or the earth's crust.
400
What type of rock is formed when magma cools slowly below the earth's surface?
What is Instrusive
400
What type of rock has bands the line up in flat layers?
What is foliated metamorphic rock
400
Why are sedimentary rocks layered?
What is because wind and water deposit sediment in layers which is eventually cemented together
400
What is geologic time?
What is time that has passed since geologists believe the earth was formed
400
What do you call a fossil that is found in the same rock layer all over the world?
What is index fossil
500
What type of rock is formed when magma cools quickly on the earth's surface?
What is Exstrusive
500
Metamorphic rocks change from the heat of magma and the pressure of ____________________ _________________ ?
What is mountain ranges
500
What type of sedimentary rock froms from the remains of plants and animals?
What is Organic sedimentary rock
500
Geologists study the layers of ___________ and ______________ to determine the earth's history?
What is Layers of rock and fossils
500
What do scientiests use index fossils to determine?
What is the ages of rocks
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