Year 8 Chemistry Revision

Which of the following is a sign of a chemical change?

• evaporation

• burning

• melting

• expanding

Which of the following is a sign of a chemical change?

• gas produced

• evaporation

• freezing

• sublimination

How does evaporation occur?

• liquids increase in temperature

• particles gain enough energy to break away from the liquid

• particles lose energy

• gases decrease in temperature

Which of the following is a property of a metal?

• brittle

• shiny

• poor conductor

• colourful

Which of the following is a property of a non-metal?

• ductile

• malleable

• conductor

• brittle

Which of the following is a compound?

• oxygen

• nitrogen

• water

• aluminium

Which of the following is an element?

• hydrochloric acid

• oxygen

• water

• glucose

Two or more substances that are not chemically combined is called a...

• mixture

• compound

• molecule

• element

Which of the following is a diagram of an element?

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Which of the following is a diagram of a compound? Select all that apply.

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