Browse the glossary using this index

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F

fibre

food used to keep waste moving through your digestive system.

Filtered

solid bits are separated from a mixture

Food chain

a diagram showing what an animal eats and what eats it

Food web

a diagram made of lots of joined up food chains, showing what eats what in a habitat and the flow of energy

Fossils

remains of plant or animal material found in rock

Freezes

changes from liquid to solid state

Frequency

number of vibrations a second

G

Gaseous exchange

when oxygen passes into the blood and carbon dioxide is moved out of the blood, takes place in the alveoli

Geologist

a scientist who studies the Earth

Grains

the usually small fragments or crystals that make up a rock


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