1. Describing Matter

2. Properties of Matter

3. Properties of Matter
• Matter can have many different properties or characteristics

4. Properties of Matter
• Matter can have many different properties or characteristics
• Chemistry is the study of how matter changes

5. Properties of Matter
• Matter can have many different properties or characteristics
• Chemistry is the study of how matter changes
• Substance is a single kind of matter and its specific properties

6. Properties of Matter
• Matter can have many different properties or characteristics
• Chemistry is the study of how matter changes
• Substance is a single kind of matter and its specific properties
• 2 kinds of property:
• Physical
• Chemical

7. Physical Properties
of Matter

8. Physical Properties
of Matter
• Characteristics of a pure substance that can be
observed without changing it into another substance

9. Chemical Properties
of Matter

10. Chemical Properties
of Matter
• Characteristic of a pure substance that describes its
ability to change

11. Elements

12. Elements
• Element is a pure substance that cannot be broken
down.

13. Elements
• Element is a pure substance that cannot be broken
down.
• Elements are the simplest substances

14. Particles of
Elements- Atoms

15. Particles of
Elements- Atoms
• The basic particle from which all elements are made

16. When Atoms
Combine

17. When Atoms
Combine
• Chemical bond is a force of attraction between 2
atoms

18. When Atoms
Combine
• Chemical bond is a force of attraction between 2
atoms
• Molecules combine to form larger particles

19. Compounds

20. Compounds
• A compound is a pure substance made of 2 or more
elements

21. Compounds
• A compound is a pure substance made of 2 or more
elements
• Chemical Formula shows the element in the
compound and ratio of atoms

22. Mixtures

23. Mixtures
• Made of 2 or more substances

24. Mixtures
• Made of 2 or more substances
• Mixtures differ from compounds in 2 ways
• Each substance in a mixture keeps its individual properties
• Mixtures are not combined in a set ratio

25. Mixtures
• Made of 2 or more substances
• Mixtures differ from compounds in 2 ways
• Each substance in a mixture keeps its individual properties
• Mixtures are not combined in a set ratio
• Heterogeneous Mixture: You can see the different parts

26. Mixtures
• Made of 2 or more substances
• Mixtures differ from compounds in 2 ways
• Each substance in a mixture keeps its individual properties
• Mixtures are not combined in a set ratio
• Heterogeneous Mixture: You can see the different parts
• Homogeneous Mixture: You cant see the different parts