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| 1. smooth
and is shiny when polished
or freshly cut 2. hard 3. cold 4. heavy - iron is very dense Why was iron chosen to make early
clothes irons?
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1. electricity - an
electrical charge passes through iron easily 2. heat - iron like other metals is a good thermal conductor 3. sound - thin sheets of iron make a 'boinn.n.g.g' noise when hit 4. magnetic force - it is one of only three metals which are attracted to a magnet Find out
the names of the other two metals which attract a magnet |
1. a weight - iron
is strong and makes a good building material 2. movement - the bonds inside iron can withstand stresses and movement 3. a knock Why do you
think iron bars are put in concrete used in buildings? |
1. if heated at a very high
temperature iron becomes malleable
and easy to shape,bend, twist or mould 2. if stretched - some forms of iron can be pulled into wire because it is not brittle and does not break easily 3. if exposed to air and water together the iron rusts Find out the scientific name for rust
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