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Living things (life) need energyto stay alive. Food relationships and energy transfer processes in the living world are important areas covered at this level. Besides, how living things respond to stimuli and react to signals are included as they are also examples of energy transfer processes. Students are also made aware of the contribution of the safe and quick long-distance transmission of signals to the advancement of our society. In the study of lifeand matter, students are first introduced to cells, which are the basic unit of living things, and the great diversity of life on earth. They are then led to examine mixtures such as air and solutions, and compounds such as water, and their importance to everyday life and to industries. In particular, social issues related to maintaining air and water quality, and the need for conservation of natural resources are also dealt with.
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