Short version
Let’s talk about mixtures. Matter can be one of two things: a pure substance or a mixture. Pure substances are made of only one thing, like water, salt or gold. Mixtures have two or more pure substances. Some mixtures are heterogeneous. In these, you can see each part, like in salad or paella. Homogeneous mixtures are different, because you cannot see each part. In other words, it is so mixed that it looks like one thing and not a lot of different things. Some examples of these are salt water and Cola Coa. Finally, alloys are mixtures in which at least one part is metal. These can be things like brass, steel and bronze. They are very strong.
Long version
Let’s review what we’ve learned about mixtures. First, all matter is made up of one or more substances and substances are made up of atoms. Matter can be either a pure substance or a mixture. Pure substances contain only one type of component, while mixtures contain two or more pure substances. A few examples of pure substances include water, salt, oxygen, diamonds and gold. There are two main types of mixtures: heterogeneous and homogeneous. The names are very similar, so be careful not to mix them up. In heterogeneous mixtures, such as salad or paella, the different components can be distinguished. However, in homogeneous mixtures, like salt water or Cola Coa, the different components cannot be distinguished. Finally, alloys are homogeneous mixtures in which at least one component is metal. Alloys like brass, steel and bronze are very strong and are used to make many different things, like pots, pans, instruments and even doorknobs. This has been our review of mixtures.
Let’s talk about mixtures. Matter can be one of two things: a pure substance or a mixture. Pure substances are made of only one thing, like water, salt or gold. Mixtures have two or more pure substances. Some mixtures are heterogeneous. In these, you can see each part, like in salad or paella. Homogeneous mixtures are different, because you cannot see each part. In other words, it is so mixed that it looks like one thing and not a lot of different things. Some examples of these are salt water and Cola Coa. Finally, alloys are mixtures in which at least one part is metal. These can be things like brass, steel and bronze. They are very strong.
Long version
Let’s review what we’ve learned about mixtures. First, all matter is made up of one or more substances and substances are made up of atoms. Matter can be either a pure substance or a mixture. Pure substances contain only one type of component, while mixtures contain two or more pure substances. A few examples of pure substances include water, salt, oxygen, diamonds and gold. There are two main types of mixtures: heterogeneous and homogeneous. The names are very similar, so be careful not to mix them up. In heterogeneous mixtures, such as salad or paella, the different components can be distinguished. However, in homogeneous mixtures, like salt water or Cola Coa, the different components cannot be distinguished. Finally, alloys are homogeneous mixtures in which at least one component is metal. Alloys like brass, steel and bronze are very strong and are used to make many different things, like pots, pans, instruments and even doorknobs. This has been our review of mixtures.
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