Share properties on new materials grade 6
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Steel is made of a mixture of ............................ and other elements
iron
Concrete is made of a mixture of rock, ....................... and ...........................
sand - water
Concrete is in .................. state when it is formed, while after it dries, it becomes in ...................... state
liquid - solid
Plastic is made by .......................... change of some compounds of ..........................
chemical - petroleum
Glass is a mixture of .........................., ....................., and sodium carbonate
sand - limestone
(Write the scientific term) A material is made by chemical change of some compounds of petroleum
plastic
(Write the scientific term) It is the original material of plastic
petroleum
(true or false) Smart clothes can light up in dark places
true
(true or false) Concrete is made of water and iron
false
(True or false) Every materials is useful for all purposes
false
