'changes can be observed by their effects.'Explain by giving suitable examples.
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2
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Breaking/Crushing of any Object
Expansion of Metal on Heating
Dissolving Sugar or Salt (Solute) in Water (Solvent) (as a result, a solution is formed)
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Changes keep on taking place around us. For example, growth of living organisms is an irreversible change. Plants and animals not only grow in size, but there are hundreds of chemical reactions taking place inside their bodies.
Moreover, changes can happen in size, shape, position, colour, state or internal structure of substances and can be observed. Thus, changes can be observed by their effects.
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