2) Is the Study of What Things Are Made of and How They

2.1 Guided ReadingName:

“What is Matter”

1) Making glass involves turning such as sand, limestone, and soda ash into a substance.

2) is the study of what things are made of and how they .

3) Matter is anything that has and takes up .

4) Air has . Light, , and are not matter because they have no mass or volume.

5) Wood has matter and is often used in . When it gets hot it chars and breaks down into another form of material .

6) An element is a substance than cannot be into any other substance.

7) Elements are made up of .or the smallest particles that have the property of an .

8) are made of carbon atoms.

9) There are more than known elements and they each have a one or two letter that represents it. Every known element is and behaves from the rest.

10) A is made up of atoms of more than one element bound together. Nylon is one example. It is made of , , and atoms.

11) When elements form a compound they change their properties. Hydrogen, oxygen, and nitrogen are all colorless , but when they combine with carbon to form nylon it becomes a flexible .

12) Iron Oxide is also know as . It always contains two parts and three parts .

13) A is the smallest unit of a substance that exhibits all of the properties of that substance. A molecule is made up of two hydrogen atoms and one oxygen atom.

14) The shows how many atoms of each element are in the basic unit of a

15) The number of is written after each elements symbol as a . If there is only one atom then no subscript is used.

16) A number in front of the formula shows the number of

17) A pure substance has a fixed and definite .

18) A is a combination of more than one pure substance. Even if a label calls grape juice “Pure Grape Juice” it would not be a pure substance because its composition is not .

19) and are pure substances, but mixtures are not. The air we breathe is a of nitrogen and oxygen.

20) Mixtures are classified by how well they mix. A mixture occurs when two substances are not uniformly mixed.

21) A mixture occurs when the mixtures occurs between individual units and is the same throughout.

22) substances have two or more that are able to dissolve into each other. The look like a substance even though they are not.

23) substances are two or more liquids that do not mix with each other. You can see two in the mixture.

24) Carbonated drinks are mixtures. They contain sugar, flavorings, and gas dissolved in water.