Primary General Science Glossary

This is a general primary science glossary. For class specific glossaries please go to the specific subjects

Browse the glossary using this index

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Fair test

A fair test is a controlled investigation used to answer a question in a scientific way.


A soft greasy substance occurring in organic tissue and consisting of a mixture of lipids.


A magnetic material containing powdered iron oxide (Fe2O3) which usually has magnetic properties. Ferrous Of or relating to or containing iron. Metals that contain iron as the major alloying element.


A thin wire in a light bulb that is heated white hot by the passage of an electric current. Tungsten is often used.


Filtering is a method of separating mixtures of solids and liquids.


An impression of the underside of the end of a finger or thumb. It is used for identification because the arrangement of ridges in any fingerprint is thought to be unique and permanent with each person.

Fire extinguisher

Any of various portable steel container devices for spraying and extinguishing a fire with Carbon dioxide or other chemicals.


To be afloat either on or below a liquid surface and not sink to the bottom of the liquid.


A fluid is a substance that continually deforms or ‘flows’. All gases and most liquids are considered to be fluids. The main characteristic of a fluid is that they are capable of flowing and easily changing shape.

Food chain

A food chain is a diagram that shows us how animals are linked by what they eat.

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