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Light colored igneous rocks are called...
granitic rocks
How many minerals are rocks usually made up of?
Rocks are usually made up of two or more minerals
Tsunamis can reach the hight of ...
20 meters
When volcanoes erupt they shoot out _____ and _____
lava and ash
what comes out of volcanoes(not including lava)
ash and sulfur
If a person studies earthquakes they are called...
Seismologists
The remains or trace of a once living plant or animal is a ...
fossil
Tsunamis can travel at speeds of...
700 to 800 kilometers per hour
Pieces of broken rock, shells,mineral grains, and other materials make up...
sediment
When the melt reaches earths surface its called...
lava
How is the Richter scale used?
It is used to quantify the amount of energy released by an earthquake.
New rocks that form when rocks that already exist are heated or squeezed are called...
Metamorphic rocks
Scientists are trying to produce _____ that helps stop a tsunami from destroying peoples homes
technology
How many ways can extrusive igneous rock form?
Extrusive igneous rock can form in two different ways.
What are three different types of volacanoes?
Cinder cones,sheild volcanoes,composite volcanoes
The epicenter is _______ the focus
The epicenter is above the focus
Non foliated rocks do not have distinct...
layers or bands
How can a tsunami form?
Tsunamis can form after earhtquakes occur.
Scientists have created something called a _____ to describe how different kinds of rock are related to one another and how rocks change from one type to another.
Rock Cycle
Lava cools quickly before ________ have time to form
large mineral crystals
What is one element that is in basaltic rocks?
Magnesium,iron, or calcium
Foliated rocks have ...
visible layers or elongated grains of minerals
Tsunamis are made of sea water so they have ____ in them.
ocean salt
What would happen in a few million years if a volcano in the middle of the ocean erupted multiple times?
An island forms
What can a volcanic eruption do to the earth?
It can decrease the amount of sunlight earth gets for several years.