Rocks
Type of rock formed from cooled magma or lava.
igneous
Type of volcanoes that are shaped like a dome and ooze lava.
shield
A crack in the Earth's crust along which rocks move.
fault
A footprint is known as what type of fossil.
imprint
This occurs when pieces of rock are worn away.
weathering
Fossils are found in this type of rock.
sedimentary
Area in the Pacific where the majority of Earth's volcanoes are located.
Ring of Fire
Earth's crust is divided into these large structures that move a little each year.
plates or tectonic plates
Fossil formed by sap that has hardened around an insect
amber
Water does this when it freezes and turns to ice.
gets larger, or expands
This type of rock is made by heat and pressure.
metamorhpic
This igneous rock floats in water!
pumice
Scientists believe that this metal is at the center of the Earth.
iron
One way a whole organism can be preserved as a fossil.
ice, tar, or amber
The buildup of sediment at a mouth of a river is known as this.
a delta
Marble is an example of this type of rock.
metamorphic
The volcano that erupted in Washington state in 1980.
Mount St. Helens
These waves happen first after an earthquake.
primary waves
A reason a fossil deep in the ground appears at the surface over time.
weathering
The layer of the earth that is directly below the mantle (two-word answer).
outer core
This is how metamorphic rock changes to igneous.
melting
If a volcano hasn't erupted in a while, it is said to be this.
dormant
When two of Earth's tectonic plates move away from each other, they are said to be this.
divergent
People who study fossils are called by this name.
paleontologist
Type of weathering that dissolves rock from an excess of carbon dioxide in the air.
acid rain