An opening in the earth's crust that allows lava to flow out
Volcano
The outer layer of the earth
Crust
An opening of the earths surface is this.
A volcano
An earthquake happens when large areas of the earth's surface do what?
shake and move
God first covered the earth with what?
Water
When large areas of the earth's surface shake and move
Earthquake
The center of the earth
core
The opening of earths surface allows hot melting ____ to flow out.
rock
What do scientists measure during an earthquake?
How long the earth shakes.
What kind of water do the oceans have?
salt
A land mass
Continent
What is the layer of the earth under the crust
mantle
The melted rock that comes out of a volcano is called this.
lava
If an earthquake happens under the ocean it causes this to form.
large waves
What kind of water is in rivers?
Fresh water
A small land mass completely surrounded by water
Island
The core has two parts. What is the outer core made of.
Liquid
When lava hardens what happens to the land?
It hardens
Scientists use a machine called a seismograph. What does this machine record?
earth's movements
What are 2 ways scientists can infer what's happing inside the earth?
through openings in the surface and by digging or drilling holes.
A large body of salt water
Ocean
The very center of the inner core made of.
solid iron
These islands were made by volcanoes.
Hawaiian Islands
What kind of large wave can form from an earthquake under the ocean?
Tsunami
How does knowing about the earth help to keep us safe?
Volcanoes and earthquakes can be dangerous so if scientists learn what causes them, they can warn people.