Tuesday, September 28, 2010

Matter matters the most

Hi, to lighten the serious blogger mood, I took the obligation and inserted an alliteration joke for you all...hence the title.HAHA.................................................................................................................... ......not funny.

Anywho, our lovelylovely teacher who shall remain anonymous tried ever so hard to refresh our memories with gr.10 chem. That included matter, states of matter and, changes in matter.


Matter doesn't necessarily matter the most, but we should all at least know what it means..
Well, matter is basically anything that has mass or takes up space!That includes YOU, and ME, and THAT DOG!(his name is Bobby)

To continue, well there are 2 types of  matter: Pure substances and Mixtures

Pure substances: 
-have one set of properties; elements and compounds are a good example
-cannot be separated into 2 parts by physically or mechanically
-have a constant composition-homogeneous (eg-H2O )

Mixtures
-shows the properties of the pure substances in the mixutre
-can be separated
-does not have a uniform composition-heterogeneous(eg-salad dressing)

I think we all know the states of matter so I'll be brief.....They are solids(shape doesn't change easily), liquids(takes shape of container) and gas(no shape)

There are 2 types of changes: Physical and Chemical change

Physical Change
no new substance is formed in a physical change, it can also be reversed.(eg-dent in a soda can)

Chemical Change
new substance is formed, irreversible. (eg- cooking)


Soooo yea, that's what we learnt so far.


May you live long and prosper :)

:jodie ng

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