Phenomenon
What degree does the moon and earth have to be, in order for an eclipse to happen?
0
This is the main theory used for the formation of the moon, where earth and its sister planet collided.
Giant Impact Theory
Largest region of earth.
Mantle
This principle states that rock layers deposited themselves from oldest to youngest.
Law of Superposition
This device is used to measure earthquake activities, recording the waves produced.
Seismograph
The name of an item when it survives Earth's atmosphere and lands on earth!
Meteorite
Dried lava flows found on the moon from when it had active volcanoes
Marias
The two types of crust.
Continental and Oceanic
This principle states that any object that crosses through a layer must be younger than the layer it crossed through.
Law of cross-cutting relationships
The location for which an earthquake occurs
Epicenter
The milky-way galaxy is known to be this type of galaxy. (Be specific)
Barred-Spiral Galaxy
This term in used to describe the moon when it appears largest in the sky.
Perigee
The core of the planet is solid while the outer core is liquid. The reason for this solid inner core is due to what?
High Pressure
A technique using the half-life of elements to determine the age of an item.
Carbon Dating
These waves produced by earthquakes are the strongest and arrive first from the origin.
P-waves
These two planets, also known as the gravitational bullies of the solar system, altered the early solar system according to the grand track hypothesis.
Jupiter and Saturn
Because the moon lacks this, craters and mountains remain untouched on the moon.
Atmosphere
The further down in the earth you travel, the more heavy metals you encounter. This is a result of what intrinsic physical property?
Density
This type of isotope forms when the parent isotope undergoes a half-life, losing 50% of its atoms.
Daughter Isotope
These waves produced by an earthquake are most destructive but carry the least amount of energy compared to its counterpart.
S-waves
This part of a comet gets longer the closer is gets to the sun due to the heat and solar winds hitting it.
Coma
Name of Earth's sister planet that collided with it early in the solar systems life-span to form the moon.
Theia
The interaction between these two layers create Earth's magnetic field.
Inner and Outer Core.
Gap in Geologic Time, visible when observing rock layers. (Often due to erosion)
Unconformities
Earthquakes are caused by a release of tension/stress at these boundaries of the earth.
Faults