Saturday, 16 June 2012


The pictures below are the pictures of elements, mixtures and compounds.
The photo shows a box of sulfur, it is an element by itself.
The photo shows a box of iron filings, it is an element by itself too.I have learnt about elements, mixtures and compounds. 
 
The photo below shows the mixture of iron filings and sulfur.
 The photos below shows the compound of sulfur and iron after it is heated.

 have also learnt that many things are created through different elements and/or  compounds through different methods .For example, sodium and chlorine form salt after the two elements have been processed.

Measurement



The pictures below are those of the vernier caliper and the micrometer screw gauge. 
The micrometer screw gauge is used to measure thing up to 3 decimal point

The vernier caliper is used to measure things up to 2 decimal places in centimeters.