The Water Cycle
water that falls from the sky
precipitation
burning ball of gas
star
the hottest and densest part of the earth
core
the boundary between a high pressure system and a low pressure system
front
the process which turns water vapor into liquid water
condensation
causes the season
tilt of the Earth's axis
these occur at transform boundaries, where one plate slides past the other plate
earthquakes
pressure system that brings clear skies and low humidity
high pressure system
the process which causes liquid water to turn into water vapor
evaporation
galaxy
Daily Double: What galaxy do we live in?
plates of rock floating on Earth's mantle
tectonic plates
in an experiment, this is the thing you change so you can test it
independent variable
this powers the water cycle
the sun
characteristics of inner planets
smaller, solid(terrestrial), few or no moons, longer days, shorter years, etc.
the thinnest layer of the Earth
crust
an educated guess, or prediction about what will happen
hypothesis
humidity level when there is precipitation
100%
three characteristics of all planets
1. big enough to be round
2. big enough to have own lane to orbit
3. must orbit a star
this occurs at subduction boundaries, where one plate goes under the other plate.
mountains
type of investigation which has an independent variable, dependent variable, and controlled variable.
experiment