molecule8E1.gifmulti-word fill quiz questions 8Ewf2 on "Atoms and elements"

   carbon      chlorine      compound      copper      dioxide      element      hydrogen      one      oxide      oxygen      several      type      types   
1. The element is a colourless gas in air.

2. The compound is formed by burning fuels.

3. The element is a green gas.

4. The compound is formed by heating copper strips in air.

5. The water is formed by combining and oxygen.

6. Copper wire is made up of of atom and so is called an .

7. Copper sulphate is made by combining of atom and so is called a compound.