This document defines matter and describes various physical properties of matter including conductivity, malleability, viscosity and solubility. It classifies matter as elements, compounds, homogeneous or heterogeneous substances and mixtures. It distinguishes between extensive properties that depend on amount and intensive properties that do not. Physical changes are described as changes in shape or phase that do not create new substances.

1. Properties of Matter November 6, 2009

2. Objectives Define matter, conductivity, malleability, viscosity, solubility Describe physical properties of matter Explain what happens during physical changes

3. Definition Matter is anything that has mass and volume Everything is made of matter

4. Classifying Matter Matter Elements Compounds Homogeneous Heterogeneous All matter has physical and chemical properties. Pure Substances Mixtures

5. Properties are characteristics used to describe an object Physical properties are those that can be observed without changing the identity of the substance

6. Extensive Properties Depends on the amount of matter present mass volume length density shape

9. Intensive Properties Independent of the amount of matter present color state melting and boiling point texture magnetic attraction brittleness hardness malleability conductivity viscosity

10. conductivity the measure of the ease at which an electric charge or heat can pass through a material

11. malleability the property of something that can be worked or hammered or shaped without breaking

12. viscosity The resistance of a liquid to flow Example: honey has a higher viscosity than water

14. solubility The ability to dissolve in another substance

15. Physical Changes in Matter No new substances are made. Examples: cutting, grinding, any phase change. A physical change may involve changing the shape of the object. You can get the original materials back.