chemistry lessons

[damienpaul]

I am wondering if folks can direct me to ideas of lessons based on:

balancing of chemical formulae

and bonding

in chemistry - i am more interested in hands on activites than computer based activities...

thanking you in advance ;)

[Tiny]

See : http://www.chemistry-react.org/fileLibrary...mulae_equat.pdf (http://www.chemistry-react.org/fileLibrary/pdf/Formulae_equat.pdf)
Usually u can find those information from Yahoo (Science Section) ^^ Enjoy

[damienpaul]

the information from the links is great, especially for my lesson planning, however, what I need are activities, experiements that would be suitable for high school students about bonding and balancing chemical equations.

Activities that would make it fun and interesting, particularly as my class borders on remedial and excedingly unmotivated. Computer based activities are generally unacceptable.

[Polly V]

off the top of my head, I remember a very simple demonstration using water and electricity. The water breaks down into its constituents of hydrogen and oxygen. You have a very visual display of twice as much hydrogen as oxygen.

I don't remember the actually setup but I'll try to track it down.

[Bluewolf027]

For some free courses on chemistry
try

http://ull.chemistry.uakron.edu/genobc/index.html

http://www.biology.arizona.edu/biochemistr...istry/main.html (http://www.biology.arizona.edu/biochemistry/tutorials/chemistry/main.html)

For University level - hands on chemistry courses through distance ed try..

http://www.athabascau.ca/

[damienpaul]

Excellent, this is exactly what I need - these can be adapted to class model building exercises - perfect for this class. I look forward to reading of your experiement Polly, and any others people may have.

[Polly V]

Here's a link for the electroysis of water, I'm assuming you have access to laboratory glassware. The following link has good description of the setup as well as pictures. Best of luck.

http://www.chem.uiuc.edu/clcwebsite/elec.html

[Faulkner]

The water breaks down into its constituents of hydrogen and oxygen.

Then strike a match over the hydrogen! BANG!

Speaking chemistry here, I have always wanted to try out the "B-Z reaction" for myself. Not sure of the exact details, but I'm sure it's easy to look up in Google or something. I believe it uses a mixture of citric acid, sulfuric acid & potassium bromate. Mix it all up & OBSERVE!!!

Here's some pictures I found of what you're likely to see:

http://www.helenstoreyfoundation.org/bzreaction.html

Fascinating stuff!!!!!

DP, if there's any chance you could do this in your class, please let us all know!
Cheers!

[Faulkner]

(That website link was the first that popped up in Google that had pictures of this chemical reaction...no other significance! Just thought I'd clarify that...)

[damienpaul]

Well we can only do what is in the curriculum so we'll see. Has anyone got any links now for balancing equations activities.