AeL - Advanced eLearning :: Importance of plants for life

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Importance of plants for life
	Plants are true "live chemical factories", which generate oxygen. In order to prove that the plants consume the carbon dioxide in the cylinder and that their leaves generate oxygen, students are asked to carry out an experiment, following the instructions on the screen. Level 2 Keywords transformations, substances, carbon dioxide, oxygen, photosynthesis, experiment

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	Methods for corrosion prevention Students are asked to carry out an experiment in order to prove which are the oxygen proof metals, and how can corrosion be prevented in the case of oxygen non-proof metals.
	Corrosion In this moment, students are asked to carry out an experiment that proves the chemical phenomenon of rusting for bodies made up of iron. In the end, students will have to write down the results of the experiment.
	Transformations of substances by changing of composition Students are asked to carry out a number of experiments in order to prove that the burning of substances takes place with a change of their composition and with their transformation into new substances.