Experiment Hunting

[Mercedes Benzene]

By the way: UncleAl, is there any place that we can get all those nifty chemicals that you mentioned in your last post? That is... without working in a laboratory?

[UncleAl]

Homeland Severity, the EPA, Haz-Mat... Say "no."

http://www.mazepath.com/uncleal/homesec.jpg

Jackbooted State compassion wll crush a society like a huge soft hand with bones of ancient stone pressing down until blood flows.

[pgrmdave]

Has anybody else ever noticed that some of UncleAl's posts seem like those random spam e-mails?

[CerebralEcstasy]

This particular site has a drop down menu of all sorts of experiments directed towards children.

http://members.ozemail.com.au/~macin...un/miniexp.htm

http://www.tryscience.org/experiment...ents_home.html

Not sure if you're looking for such elementary experiments........but there they are just the same.

[hallenrm]

I suppose that you do not know that dealing with chemicals is often considered dangerous. Kids after all do not really know how to handle chemicals.

I have lots of ideas and suggestions but would not offer them unless I know the kind of website you have launched or launching.

[Michaelangelica]

Originally Posted by hallenrm

I suppose that you do not know that dealing with chemicals is often considered dangerous. Kids after all do not really know how to handle chemicals..

What do you mean!
I made lots of interesting things when I was 12. Like gunpowder. I blew up the ant's nests with it (I hated ants) and made my own firecrackers.
For some strange reason I was thrown out of chemisty classes whan I was 14.
Funny that.

[CerebralEcstasy]

Experiment: Bomb Calorimetry

The heat change associated with the combustion of a compound, such as CwHxNyOz , is measured with a bomb calormeter.

CwHxNyOz (s) + ( 2w + x/2 - z)/2 O2 (g) — › w CO2 (g) + x/2 H2O (l) + y/2 N2 (g)
The experimental procedure used to acquire the heat change is illustrated in the JAVA applet below. Select a compound (benzoic acid, glycine, naphthalene, oxalic acid, and sucrose) to be burned, enter the weight of the sample of the selected compound, and click the "Start" button. When the "Ignite" button appears, click the button to initiate the combustion reaction. Record the intial and final temperatures of the calorimeter. See the Tutorial for Experiment: Bomb Calorimetry for an example and help.

Compound Chemical Formula Molar Mass (g/mole) benzoic acid C7H6O2 122.12 glycine C2H5NO2 75.07 naphthalene C10H8 128.17 oxalic acid C2H2O4 90.04 sucrose C12H22O11 342.30

Place a 3.300 g sample of benzoic acid in the bomb. After the calorimeter is assembled, ignite the sample and record the initial and final temperatures.

2. If DEcomb = -26.43 kJ/g for benzoic acid , how much heat will be produced when 3.300 g of benzoic acid are burned in the calorimeter?
3. Why does the temperature of the water in the bucket rise?
4. If the specific heat capacity of water is 4.180 J/g-oC, how much heat did the 2000 g of water absorb?
5. Why is the amount of heat absorbed by the water not equal to the amount of heat produced from the combustion of the 3.300 g sample of benzoic acid?
6. Calculate the heat capacity of the calorimeter, Ccalor. See the lecture notes for help.

If you have preformed all of the experiments, answered all of the questions above, and completed this section of the report to be submitted for credit, then you may check the Answers to the First Set of Questions


Place a 2.000 g sample of naphthalene in the bomb. After the calorimeter is assembled, ignite the sample and record the initial and final temperatures.

2. How much heat is produced when the 2.000 g sample of naphthalene is burned?
3. Calculate DEocomb for the combustion of 1.00 mole of naphthalene.
4. Calculate DHocomb for the combustion of 1.00 mole of naphthalene. See the lecture notes for help.
5. Calculate DHof for naphthalene. See the lecture notes for help.

I did a similar type of experiment through a course via correspondence, in my kitchen. My children 8 and 6 at the time were there with me watching what I was doing, and listening to me explain what I was doing.


While obviously I would NEVER suggest that a child should do this experiment on their own, I think it was a great experience for my children. Even though their understanding was limited.


We've done all sorts of science experiments, it allows me to express my love of learning/teaching and engage their interest as well.

Plus, as a result of this.......they have bragging rights in the neighbourhood and I get to hear "Man, I wish I had YOUR Mom, SHE'S COOL".

[Tim_Lou]

how about the traditional makings of explosive nitrogen triiodide.

you just needand to make (explosive)... both of these aint that hard to get.

or even thermite reaction... they are good stuffs.

[Tim_Lou]

or maybe the cool "volcano" from decomposition of ammonium dichromate


just put these powder on a pile...and somewhere safe. then light a match and watch it decomposes like a volcano!

also, some oscillation reactions are cool as well (its lovely when i saw it in class, although it was on video). However, i cannot remember when all the chemicals are....

[Michaelangelica]

How many kids would be scientists if allowed to play like this?
Is play the sourcee of creativity?

Amazing Sticky Note Experiment Video | The Mentos and Diet Coke Guys are At It Again!
Posted in: Art Videos & TV, Awesome Videos to Watch Now, Cool Tricks & Pranks, News and Video On Demand by Lauren Katulka on September 13, 2008

When the folks at Eepybird made a video documenting the effects of combining Diet Coke with Mentos they created internet history. Now they’re set to do it all again with their Sticky Note Experiment.

The word experiment is probably a bit misleading, as they don’t seem to be testing anything here. Instead they’re just doing very cool things with colorful sticky note pads. Despite the lack of science behind this one, it’s absolutely dazzling.

Your boss might not like it, but isn’t it tempting to recreate some of this in your own office? Who knew sticky notes could make any workplace a party?

Amazing Sticky Note Experiment Video | The Mentos and Diet Coke Guys are At It Again! Web TV & Video