Show:
Plate Tectonics
Earthquakes, volcanoes, rocks and minerals
Oceanography
Meteorology
Astronomy
100
what is seafloor spreading?
regions called midocean ridges, new crust is formed and old crust is moved away from the center
100
what are earthquakes?
the shaking or trembling caused by the sudden release of energy.
100
what are the 3 major oceans?
pacific, alantic, indian
100
what is humidity?
the amount of water vapor in tha air
100
what is astronomy?
the study of the universe beyond the earth
200
what is the theory of plate tectonics?
theory describing why and how continents move across the earths crust.
200
what is lava?
magma that erupts onto the earths surface
200
what are the 2 minor oceans?
arctic and southern
200
what is evaporation?
liquid water vapor and rising into the air
200
what is a galaxy?
a system of stars and other matter bound by gravity.
300
what is oceanic crust?
formed from material on the ocean floor
300
what is the ring of fire?
zone of volcanic activity along the edge of the pacific ocean.
300
what is a bathysphere?
diving vessel lowered on cables
300
what is precipitation?
water falling to the earth from the atmosphere as rain, sleet, snow, etc.
300
what is a star?
a massive body of gases that gives off tremendous amounts of energy in the form of light and heat.
400
what is the continental crust?
lighter material making up the continental land masses.
400
what are the three types of volcanoes?
shield volcano, cinder cone, and composite volcano.
400
what is a bathyscaph?
self-propelled mini- submarine
400
what is a front?
regions where two or more air masses collide.
400
what is a planet?
a large body which orbits a star.
500
what are lithosphere plates?
separate pieces of oceanic and continental crust which float on the asthenosphere
500
what is a mineral?
is any material that is solid, and non living.
500
what is a continrntal shelf?
gently sloping zone of shallow water off coastline
500
what is a warm front?
warm moves in cold= light rain
500
what is a universe?
everything that exists physically, all matter, energy, space, and time.