Perbadanan Perpustakaan Awam Pulau Pinang
There are repeated patterns of change in nature. Examples of these cycles are the life cycles of living things and the water cycle. Understanding these cycles helps Man to predict events and process ...
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Energy makes changes and movement possible in everyday life. Man uses various forms of energy for many different purposes. Man is not the only animal that needs energy, all living things obtain energ ...
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A system is a whole consisting of parts that work together to perform a function(s). There are natural systems as well as man-made system. Examples of systems in nature are the digestive and respirat ...
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Studying the interactions between and within systems enhances understanding of the environment and Man's role in it. Interactions occur within an organism, between organisms as well as between organi ...
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