List of Words for Letter ‘F’

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fault A deep crack in Earth’s crust.
fertilization The joining of a sperm cell with an egg cell to make one new cell, a fertilized egg.
floodplain Land near a river that is likely to be under water during a flood.
focus The point where an earthquake starts. The path that energy and nutrients follow in an ecosystem.
food chain The path that energy and nutrients follow in an ecosystem.
food web The overlapping food chains in an ecosystem.
force Any push or pull by one object on another.
fossil Any remains or imprint of living things from the past.
fossil fuel A fuel formed from the decay of ancient forms of life.
frame of reference A group of objects from which a position or motion is measured.
freezing point The temperature at which a substance changes state from a liquid to a solid.
frequency The number of times an object vibrates per second. A force that opposes the motion of one object moving past another. The boundary between two air masses.
friction A force that opposes the motion of one object moving past another.
front The boundary between two air masses.
fulcrum The pivot point of a lever.