what is Electric current
a flow of charged particles, such as electrons or ions, moving through an electrical
A location where two lithosphere plates spread apart
divergent plate boundary
this is the first layer of the atmosphere this is where we live
Troposphere
An imaginary line running through the poles of earth is called
Magnetic poles
A meteoroid that has hit earth's surface.
meteorite
what is the SI unit for electric current
taking the fixed numerical value of the elementary charge e to be 1.602 176 634 x 10–19 when expressed in the unit C, which is equal to A s, where the second is defined in terms of ΔνCs.
type of plate boundary where two plates slide past each other
Transform plate boundary
The second layer of the atmosphere. Jets fly here because there is no weather. The ozone layer is here.
Stratosphere
what causes earths seasons
it's rotation
small rocky bodies that move around the Sun mainly between the orbits of Mars and Jupiter
asteroid
what is the SI unit for Reactance
ohm' (volt per ampere)
a locations where two lithosphere plates come together
Convergent plate boundary
The middle layer of the atmosphere. Meteors are here and there are strong winds
mesosphere
how long does it take the earth to make one rotation on it's axis
one year
A group of stars that forms a shape or pattern
constellations
a difference in electric potential energy between two positions
voltage
A large continuous mountain range found within one ocean basin it is the location on the seafloor where magma upwells and forms new seafloor
seafloor spreading
It is the fourth layer of the atmosphere. It contains the ionosphere which reflects radio waves back to earth so we can hear the radio.
Thermosphere
earth magnetic field is due to
the force of the suns magnetic field
areas on the sun's surface that are cooler and less bright than surrounding areas
sunspots
the transfer of electrons that occurs when one object rubs on another is called
friction
occur along divergent plate boundaries, where new ocean floor is created as the Earth's tectonic plates spread apart
mid ocean ridge
The last layer of the atmosphere. Air molecules are so far apart that spacecrafts are able to fly through it.
Exosphere
one revolution of earth is equal to what time span
1 decade
large cloud of gas and dust in space where stars can be made
Nebula