Atoms, Elements, Compounds & Mixtures Task 1: Rewrite the sentences if you think they are wrong

All matter is made of tiny particles called elements

All matter is made of tiny particles called atoms.…………………

An element is a substance made of one atom

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Air, sea water and oxygen are mixtures

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Compounds are easily separated as their atoms are not chemically joined together

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a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.