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Browse the glossary using this index

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Bog:  1  2  (Ka ku xiga)
  ALL

I

Igneous rocks

rocks formed from molten (melted) material

immune

antibodies already in your blood recognise microbes and stop them causing disease

Impurities

unwanted parts of a mixture

Incident ray

light ray that hits a surface

infection

having a microbe present in your body, usually causes symptoms

infectious

being able to pass on a disease

Infrared radiation

heat energy moving like visible light

Inhale

breathing air into the lungs

Inspire

breathing air into the lungs

Insulator

material that reduces the amount of heat, electricity or sound energy moving through it

Bog:  1  2  (Ka ku xiga)
  ALL