Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
equator
|
an imaginary line that divides the earth into the Northern and Southern Hemipheres
|
|
|
oblate spheroid
|
a slightly flattened sphere
|
|
|
axis
|
imaginary straight line running through the earth from pole to pole
|
|
|
hydrosphere
|
all of earth's water
|
|
|
atmosphere
|
the blanket of gases surrounding the earth
|
|
|
seismic waves
|
vibrations that travel through the earth
|
|
|
crust
|
thin, solid, outermost zone of the earth
|
|
|
mass
|
amount of matter in an object
|
|
|
oceanic crust
|
crust under the ocean
|
|
|
continental crust
|
parts of the crust where continents rest on
|
|
|
mantle
|
a zone of rock nearly 2,870 km thick
|
|
|
lithosphere
|
a rigid layer 65km to 70 km; solid portion of the mantle and the crust above it
|
|
|
asthenosphere
|
just below the lithosphere
|
|
|
plasticity
|
the ability of a rock to flow
|
|
|
core
|
below the mantle
|
|
|
P waves
|
primary waves
|
|
|
S waves
|
secondary waves
|
|
|
Moho
|
the change in waves between the crust and mantle
|
|
|
shadow zones
|
lacations on earth's surface where only P waves are located and where the S and P waves aren't.
|
|
|
magnetosphere
|
region of space which is affected by earth's magnetic feild
|
|
|
gravity
|
the force of attraction that exists between all matter in the universe
|
|
|
law of gravitation
|
one of Newton's Laws that states that the force of attraction between any two objects depends apon their masses and distance between them
|
|
|
weight
|
the measure of the strength of the pull of gravity on an object
|
|
|
newtons (N)
|
weight is measured in this
|
