The Nature of Substances
Have you ever thought about what everything around you is made of? A substance is the material or matter that makes up objects, like the chair you sit on or the water you drink. Because substances can be seen and touched, we can easily recognize them, like iron in a bicycle or air in a balloon.
Some substances are puremixturesaluminum, while others, like water, are. So next time you pick up something, remember: it’s made of different substances all around you!, like