Electricity
build up of charge on an object
static electricity
matching fossils up that were in different continents
fossil correlation
This gas is 78% of earth's gases
nitrogen
What percent of water is oceans
97%
dark areas on suns surface
sunspot
area around a charge where electric force can be felt
electric field
movement of plates around the surface of the earth
plate tectonics
lowest layer of the atmosphere
troposphere
two types of crust
continental and oceanic
the outermost plasma layer
corona
measured in ohms
resistance
what are the three types of plate boundaries
convergent, divergent, transform
What layer absorbs UV radiation
Ozone layer
half of a sphere
hemisphere
separates the outer planets from inner planets
asteroid belt
allows electrons to flow
conductor
what helps us see things underwater
echo sounding
This layer is closest to space
exosphere
what the earth revolves around
sun
the four inner planets
Mercury, Venus, Mars, Earth
loop through which electricity can travel
electric circuits
what is a trench
the deepest point in the ocean
Mass/volume
Density
how many hours does the earth take to rotate
24 hours
what planet has the most seen rings
Saturn