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Glossary results for "F"

fabric

a material made by interlacing two or more sets of yarns or fibres

fact

a statement that is true and can be verified

factory

a large building where machines are used to produce goods on a large scale

fair test

an experiment that is designed to test the effect of one variable on another variable while keeping all other variables constant

farm

a land area that is used to produce food, fiber, or other agricultural products

fast

to move or happen quickly

fat

a type of lipid, which is a group of molecules that are made up of carbon, hydrogen, and oxygen

father

a male parent

feather

the lightweight, flexible structures that cover the bodies of birds

February

the second month of the year in the Gregorian calendar

fermium

a chemical element with the symbol Fm and atomic number 100

fern

plants that do not have flowers or seeds

fertile

something that is able to produce offspring

fertilisation

the process of the union of a sperm cell and an egg cell to form a zygote

fertiliser

a substance that is added to soil to improve its fertility

fibre

a type of carbohydrate that is found in plants or an electrical cable

fibula

the smaller of the two bones in the lower leg

filament

a thin, thread-like structure. It can be found in many different things, including light bulbs, muscles, and plants

filter

a device that separates particles of different sizes

finger

a long, thin appendage that projects from the hand

fish

aquatic vertebrates that are characterised by gills, fins, and scales

flask

a laboratory glassware that is typically cylindrical in shape with a narrow neck and a flat bottom

flavour

the combination of taste, smell, and other sensory experiences that we perceive when we eat or drink something

flerovium

a chemical element with the symbol Fl and atomic number 114

flexibility

the ability of your muscles and joints to move through a full range of motion

float

to remain on the surface of a liquid without sinking

Florence Nightingale

a nurse, statistician, and social reformer who was instrumental in the development of modern nursing

Florence R. Sabin

a doctor, scientist, and public health advocate who made significant contributions to the understanding of the lymphatic system and tuberculosis

flower

the reproductive part of a flowering plant

flowering plant

a plant that produces flowers

fluorescent

a phenomenon in which certain materials emit light when they are exposed to light of a different wavelength

fluoride

a chemical element with the symbol F and atomic number 9

fluorine

a chemical element with the symbol F and atomic number 9

flux

a substance that is used to remove impurities from metals and to help solder flow more easily

foetus

a developing human baby in the womb

food chain

a linear sequence of organisms through which nutrients and energy pass

food web

a complex network of interconnected food chains

force

any interaction that, when unopposed, will change the motion of an object

forest

a large area of land that is dominated by trees

forklift truck

a powered industrial vehicle used to lift and move heavy objects

fossil

any preserved remains, traces, or imprints of an organism that lived in the past

fossil fuel

a type of energy source that is formed from the remains of dead plants and animals that lived millions of years ago

fraction

a number that represents a part of a whole

fracture

a break in a solid object

Francis Crick

a British molecular biologist who, along with James Watson, discovered the structure of DNA in 1953

francium

a chemical element with the symbol Fr and atomic number 87

freeze

a phase transition that occurs when a liquid is cooled below its freezing point

fresh food

food that has not been processed or preserved

freshwater

water that contains less than 1% salt

friction

a force that opposes the relative motion of two solid surfaces in contact

frog

a small, cold-blooded vertebrate animal that belongs to the order Anura

froglet

a juvenile frog that has just undergone metamorphosis from a tadpole

frogspawn

the gelatinous mass of eggs that frogs lay

frost

a type of solid precipitation that forms when the temperature of the air is below freezing and the relative humidity is high

frozen food

food that has been cooled to a very low temperature, typically below -18 degrees Celsius (0 degrees Fahrenheit)

fruit

the ripened ovary of a flowering plant

fuel

a material that can be oxidized (burned) to release energy

fulcrum

the point on which a lever pivots

fungus

a eukaryotic organism that is neither a plant nor an animal

funnel

a simple machine that is used to direct the flow of fluids or granular materials

furniture

a type of inanimate object that is used to furnish a room or building

fuse

a safety device that is used to protect electrical circuits from overloads