Quiz Day

Today (unfortunately) was quiz day!

but before we wrote our quizzes on Conversion we had a review on Matter!

What is Matter??

- it is anything with mass and volume

ex. pretty much everything you've ever known about (you, your clothes, your house, air, trees, animals etc.)

- Matter is made up of 2 parts: Pure substances  and  mixtures

This is were things get a little trickier!

Pure substances have only 1 set of properties however mixtures have more then 1

Within Pure substances there are elements and compounds

-we learned a lot about elements and compounds throughout grades 6 to 10

-just to sum it up, elements are in there simplest forms, and compounds are made of elements

Mixtures were a pretty new idea today, to be honest I cant really remember learning about them in the past.

homogeneous and heterogeneous are the 2 ways mixtures are physically combined.

that probably makes no sense right now (I thought so at first) but really it's not that hard

Homogeneous basically means you cant tell how many components there are, you can only see 1

- ex. milk or fog

Milk: only 1 visible component

Heterogeneous is the opposite, it is obvious that it has more then 1 component

-ex. water + oil mixed together

water + oil: more then 1 visible component

This seems like a lot of information, but I'm still not done!

Another thing we learned before our quiz was the difference between Physical and Chemical change, instead of telling you about it, here is a video that tells you about the 2 changes

http://www.youtube.com/watch?v=5yjEDihEuZI

I hope you enjoyed the video, with it's little song!!

After we learned all this new information we finally went on to our quiz! Which was what you see below this post!