1. What is matter?

2. Matter Anything that has a mass and takes up a volume
Air, water, you, me, the desk, the door, the floor, the sky, the earth.

3. Hypothesis vs theory vs law

4. Hypothesis A statement that is yet to be tested
If I stomp on the floor, then Mr. Ngo will be mad.
Not yet tested, but I am making an educated guess that is testable. So it MUST BE ABLE TO BE DONE!

5. Theory
A set of hypothesis that has happened and comes from observations of the natural world.
So if I stomped and we all stomped everyday. Mr. Ngo will get mad. We can say our theory of stomping is that Mr. Ngo will get mad.

6. Law
Will state the results of an experiment and state what will happen in specific situations
This is usually taken as fact
Ex. Boyles Law – Think of a balloon
When pressure increases, volume decreases
When pressure decreases, volume increases.

7. Physical Property
Physical property of a pure substance is anything that can be observed without changing the identity of the substance
Intensive – depends upon the nature of the substance. Does not have to do with amount
Melting points and boiling points. Density
Extensive – Has to do with amount and will change the property
Mass and volume as the more you have, the more it weighs and take up space.

8. Physical Property Any property where you use your 5 senses.
Colour, state, hardness, density

9. Chemical Property
Is the characteristics which is exhibited as one substance is chemically changed into another
Hydrogen when it reacts and burns will create water.
So hydrogen's chemical property is it can burn and turn into water.

10. What is matter? Matter is anything that takes up space and has a mass
Solid – Particles that are very ordered and are not able to compress. Elements do not slide pass each other.
Liquid – Particles with greater kinetic energy, but still not able to compress. Particles slide pass each other.
Gas – Particles with wide separation from one another and can be compressed due to the space around them.

11. Classification of Matter
P.50 of Hebden

12. Classification by composition
See handout

13. Homework
Pg 44 - #13
Pg 52 - #33, 36, 44