A wheel and rope that changes the direction of force.
Pulley
half of the Earth
Hemisphere
the overlapping food chains in an ecosystem
food web
water in the form of a gas
water vapor
continuous exchange of carbon dioxide and oxygen among living things
carbon cycle
The part of a lever that applies force to the resistance arm
Effort Arm
measures wind direction
Windvane
a species that has died out
extinct
moving pieces of earths crust
plate
the force one object applies to second object,newtons 3rd law
action
The speed and direction of a moving object
Velocity
measures air pressure
Barometer
all living things in an ecosystem
community
a crack in earths crust
fault
measures temperature
thermometer
The action or process of moving or being moved
Motion
wind that blows from sea to land
Sea breeze
path of energy in food from one organism to another
food chain
fan shape region formed by deposits of sediment,found at mouth of river
delta
noise caused by lightning
Thunder
"For every action,there is an equal but opposite reaction"
Newton's 3rd law
layer of atmosphere closest to earth's surface
Troposphere
a living thing that is hunted
prey
mountain made up mostly of rock layers folded by being squeezed together
fold mountain
wind that blows from land to sea
land breeze