1. Lesson 1 Classifying Matter Lesson 2 Physical Properties
Chapter Introduction
Lesson 1 Classifying Matter
Lesson 2 Physical Properties
Chapter Menu

2. The study of matter and the changes it undergoes.
Chemistry:
The study of matter and the changes it undergoes.

3. Understanding Matter
Matter is anything that has mass and takes up space.
Lesson 1-1

4. What is mass? How is it measured? What is volume?
Which has more volume a deflated balloon or an inflated balloon?

5. Understanding Matter (cont.)
Everything you can see is matter.
Are there things you cannot see, that are matter?
What is the smallest whole part of matter?
Lesson 1-1

6. It’s a “classified” MATTER!

7. Start here…
Matter
Pure Substances
Mixtures
Lesson 1-3

8. Pure Substances
A substance is matter where the entire composition is ALWAYS the same.
Meaning:
it is always made up of one or more atoms in the same combinations.
Examples are: elements and compounds.
118 elements and 10 million or more compounds
Lesson 1-3

9. Substances-Element
An element is a substance that consists of just one type of atom and each has their own symbol.
Because there are 118 known elements, there are 118 different types of atoms.
Lesson 1-3

10. Substances-Element
Each type of atom contains a different number of protons in its nucleus.
The # protons in an atom is the atomic number of the element.
Lesson 1-3

11. Substances-Compound
A compound is a type of substance containing atoms of two or more different elements chemically bonded together.
The combination of symbols and numbers that represents a compound is called a chemical formula.
glucose
Lesson 1-3

12. Draw and label an atom be sure to use proton, neutron, nucleus, electron, + charge, - charge, o charge

13. 3.Only one type of atom? It is an element.
Diatomic element
Element
Lesson 1-3

14. 4. If it contains more than one type of atom, it is a compound.
Lesson 1-3

15. Not An Element or Compound? It is a Mixtures
There are several kinds of mixtures.
Lesson 1-4

16. Mixtures Heterogeneous mixture Homogeneous mixture
2.is a type of mixture in which the individual substances are not evenly mixed. 4. Two samples of a heterogeneous mixture can have different amounts of the substances.
3. is a type of mixture in which the individual substances are evenly mixed.
5. Two samples of a homogeneous mixture have particles so small and well-mixed that they are not visible, even with most high-powered microscopes.

17. Mixtures (cont.)
To dissolve means to form a solution by mixing evenly.
A homogeneous mixture is also known as a solution.
Lesson 1-4

18. Compounds v. Solutions
The composition in a compound does not vary. Therefore, a chemical formula can be used to describe the compound.
Because composition in a mixture can vary, a chemical formula cannot be used to describe mixtures.
Lesson 1-5

19. Lesson 1-6

20. Which term describes matter that can vary in composition?
A. atom
B. element
C. mixture
D. substance
Lesson 1 – LR1

21. What is the combination of symbols and numbers that represent a compound?
A. atomic number
B. chemical formula
C. mixture
D. substance
Lesson 1 – LR2

22. B. heterogeneous mixture C. chemical formula D. compound
Which term refers to a type of substance containing atoms of two or more different elements chemically bonded together?
A. homogeneous mixture
B. heterogeneous mixture
C. chemical formula
D. compound
Lesson 1 – LR3

23. 1. The atoms in all objects are the same.
Do you agree or disagree?
1. The atoms in all objects are the same.
2. You cannot always tell by an object’s appearance whether it is made of more than one type of atom.
Lesson 1 - Now

24. Lesson 2 Reading Guide - KC
Physical Properties
What are some physical properties of matter?
How are physical properties used to separate mixtures?
Lesson 2 Reading Guide - KC

25. Lesson 2 Reading Guide - Vocab
Physical Properties
physical property
mass
density
solubility
Lesson 2 Reading Guide - Vocab