9 lines
704 B
HTML
9 lines
704 B
HTML
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What is the World made of?
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The world around us, everything we see, touch, smell and taste, is made of matter. Everything from
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the device you are reading this webpage on and the ground that you are standing on to your body and
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the air you breathe - all consist of matter. But what is "matter"? People have been puzzling over
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this question for generations. In the early 20th century, it was believed that the smallest unit of
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matter was the atom (from greek atomos, meaning indivisible). It was known that atoms of different
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types have different properties and cannot be transformed into one another. However, today we know
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what atoms are made up of and why the different atoms have different properties.
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