1) What is made when a material dissolves in a liquid? a) A mixture b) A solution c) A material d) A chemical 2) How could we separate a salt solution? a) Sieving b) Filtering c) Heating/ evaporating 3) Which of these is an example of a irreversible reaction? a) Dissolving sugar in water b) Freezing water to make ice c) Mixing flour and raisons together  d) Cooking an egg 4) What is the definition of an thermal conductor? a) a material that doesn't let heat pass through easily  b) a material that soaks water up well c) a material that lets heat pass through easily  d) a material that lets electricity pass through easily 5) What is a magnetic material? a) A metal b) Something that has a north and south pole  c) Something that is attracted to a magnet d) Something that lets electricity pass through

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