* Down below is a song that classifies matter.
Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). A pure substance is a substance which is composed of only one type of atom or particle, and that has chemical and physical properties that do not change. Two examples of pure substances are elements and compounds.
An element is made up of one kind of atom. Also, an element is a substance made up of atoms which all have the same number of protons and the same atomic number. Elements are the simplest substance and can not be broken down using chemical methods.
Example: Silver is an element. An element can never change and silver doesn't change even if you chop the silver up in tiny little pieces. Some other examples of elements are oxygen, hydrogen, sodium, chlorine, lead, and iron.
A compound is a pure substance composed of two or more types of atoms chemically bonds together to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.
Water and Methane are examples of compounds, because they are they are made up of more than one type of atom and they can be broke down to simpler compounds or elements. Some other examples of compouds are carbon dioxide, marble, and hydrogen chloride.
A mixture is a material system made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities are retained and are mixed in the form of heterogeneous mixtures and homogeneous mixtures.
A homogeneous mixture is a combination of substances that has uniform composition and properties, or a mixture that is uniform throughout.
A bottle of perfume is also a type of homogeneous mixture. Some examples of homogenous mixtures are mouthwash, laundry detergent, vegetable oil, and vinegar.
A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase. Some examples of solutions are rubbing alcohol and sugar dissolved in water.
Coffe is an another example of a solution. It is an example because the coffee has two substances and it looks the same through out.
A heterogeneous mixture is made of different substances that remain physically separate. Heterogeneous mixtures always have more than one phase (regions with uniform composition and properties). Some examples of heterogeneous mixtures are colloids and suspensions.