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Properties of light and sound, similarities and differences.
Viewed 1879 times - Created inside Science. to know the hormones which control pregnancy.
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Viewed 2487 times - Created inside Science. Words about inheritance and selection need to be emphasised upon.
Viewed 1833 times - Created inside Science. What is chromatography and what is it used for? To emphasise the point about chromatography as a separation method of soluble dyes.
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