1. Matter and its properties

2. Matter defined: Volume defined:
Matter is anything that has mass and takes up space
Volume defined:
The amount of space an object takes up
Units expressed as mL, or cm cubed

3. Mass and Weight, What’s the difference
Mass is the amount of matter in an object.
Unit expressed by grams
Always constant, never changes
Weight is a measure of the gravitational force exerted on an object.
Unit expressed in Newtons (N)
Can change, depending on the objects location in the universe.

4. Physical Properties of Matter
Let’s play 20 questions!

5. Identifying Matter Thermal Conductivity
The rate at which a substance transfers heat.

6. Identifying Matter Density Solubility
The mass per unit volume of a substance, or m/v
Lead is a very dense metal
Solubility
The ability of a substance to dissolve in another substance

7. Identifying Matter Ductility Malleability
The ability of a substance to be pulled into a wire.
Malleability
The ability of a substance to
be rolled or pounded into thin sheets

8. Identifying Matter State
The physical form in which a substance exists, such as a solid, liquid, and gas

9. New State!
Let me introduce you to the fourth state of matter:
PLASMA

10. Physical Changes
A physical change is a change that affects one or more physical properties of a substance, but does not change the identity of the matter involved. Many Physical changes can be reversed.

11. Chemical Properties
Chemical properties describe matter based on its ability to change into new matter that has different properties.
Examples: Wood has the chemical property of flammability, because it can burn.
Ash and smoke can not burn, so they have the chemical property of nonflammability.

12. More Examples of Chemical Properties
Reactivity: the ability of two or more substances to combine and form one or more new substances

13. Physical and Chemical Properties

14. Chemical Changes
A chemical change happens when one or more substances are changed into new substances that have new and different properties.
-The statue of liberty was originally orange, because it is made of copper. Copper is reactive with oxygen, it turns green.

15. How do you know if a Chemical Change has occurred?
Indication a chemical change has occurred:
Change in color
Odor
Production of heat
Fizzing or foaming
Sound or light
Almost all chemical changes are irreversible, like baking a cake. Electrolysis is an example of one that can be reversed
The method of sending an electric current into water, so it can split and form hydrogen and oxygen