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;
31 Cards in this Set
- Front
- Back
|
solar system
|
The sun, with the group of celestial bodies which, held by its attraction, revolve round it.
|
|
|
planet
|
Any of the celestial bodies (other than comets or satellites) that revolve around the sun in the solar system
|
|
|
gravity
|
The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near the surface.
|
|
|
inertia
|
The tendency of a body at rest to remain at rest or of a body in straight line motion to stay in motion in a straight line unless acted on by an outside force.
|
|
|
lithosphere
|
The outer part of the earth, consisting of the crust and upper mantle.
|
|
|
crust
|
Rocky surface that makes up the top of the lithosphere, includes continents and ocean floor.
|
|
|
hydrosphere
|
The water vapor in the earth's atmosphere.
|
|
|
atmosphere
|
Gaseous mass or envelope surrounding the earth.
|
|
|
constellation
|
A cluster of stars
|
|
|
fault
|
A fracture of a rock formation caused by a shifting or dislodging of the earth's crust.
|
|
|
geologist
|
A scientist who studies the earth's crust.
|
|
|
magma
|
Molten rock material under the earth's crust, from which igneous rock is formed by cooling.
|
|
|
lava
|
Molten rock that reaches the earth's surface through a volcano.
|
|
|
weathering
|
Action of the elements on a rock in altering its color, texture, or composition, or in rounding off its edges.
|
|
|
erosion
|
Wearing away of the earth's surface by any natural process.
|
|
|
deposition
|
The natural process of laying down a deposit of something.
|
|
|
mineral
|
A naturally occurring, inorganic solid substance having a chemical composition and characteristic crystalline structure, color and hardness.
|
|
|
luster
|
brightness
|
|
|
streak
|
The fine powder or mark yielded by a mineral when scratched or rubbed against a harder surface.
|
|
|
hardness
|
resistance of a metal or other material to denting, scratching, or bending.
|
|
|
cleavage
|
The state of being split; a fissure or division.
|
|
|
ore
|
metal
|
|
|
gem
|
A precious stone of any kind, such as the ruby, emerald, topaz, sapphire.
|
|
|
rock
|
Any natural deposit forming a part of the earth's crust.
|
|
|
igneous rock
|
Rock formed by the solidification of molten magma sedimentary rock: rock formed from consolidated clay sediments.
|
|
|
fossil
|
The remains of an animal or plant found in solidified rocks.
|
|
|
metamorphic rock
|
Rock altered by pressure and heat.
|
|
|
humus
|
Partially decomposed organic matter.
|
|
|
meteorite
|
Chunk of rock from space that strikes the surface of earth or the moon.
|
|
|
pollution
|
The state of being contaminated with harmful substances.
|
|
|
rock cycle
|
Relationships between igneous, sedimentary, and metamorphic rocks.
|
