1. Classifying Matter

2. What is matter?
Matter: anything that has mass and takes up space.

3. Matter
It is broken down into two categories: pure substances and mixtures.

4. Pure Substance: Composition and properties never change from one sample to the next
Ex: Table salt, Oxygen, pure water

5. Mixtures: Composition and properties can change from one sample to the next
Ex: Salsa, lemonade, milk

6. Element: pure substance that cannot be broken down into simpler form by ordinary means
Contain only 1 type of atom
Atom: smallest particle of an element that keeps the properties of the element

7. Examples of Elements Gold Sodium Chlorine
Precious Metal Reactive metal Green Gas

8. Compound: Pure substance made of two or more elements joined in definite proportions
Made of 2 or more types of atoms
Ex: Water (H2O),

9. Compounds
Properties of compounds differ from the elements that make them up: O H2
Hydrogen
+ O2
Oxygen H H
H2O
(Gas)
(Gas)
Water (liquid)

10. Types of mixtures Heterogeneous mixture: Parts are unevenly mixed
Chocolate chip cookie
Homogeneous mixture (solutions): Parts are evenly mixed throughout
Salt water, sugar water

11. Matter Pure Substance Mixture
Matter Tree
Matter
has mass and
occupies space
Pure Substance
Composition always same
Mixture
Composition Can change
Element
Made 1 kind of
atom
Compound
Made Two or more
kinds
Of atoms
Homogeneous
Evenly Mixed
Heterogeneous
Unevenly Mixed