Metals and Ore Crossword Puzzle

QUESTIONS LIST:

• alloy : this is a material made by mixing a metal with other things
• oxide : the chemical called lime is made from calcium ....................
• decomposition : when we heat a chemical until it breaks apart this is called thermal .................................
• steel : this is an alloy made by mixing iron with carbon
• cryolite : this is what aluminium ore is dissolved in before electrolysis
• concrete : this is made by mixing cement with water and sand
• hematite : this is the name of iron ore
• bauxite : this is the name of aluminium ore
• reactive : aluminium must be made using electrolysis because aluminium is a .............................. metal
• limestone : this stone is made from calcium carbonate
• ore : this word describes rocks which contain a lot of useful minerals
• extraction : this word means 'to remove something'.
• oxidation : word that means 'loss of electrons'.