Stuck in someone else's frames? break free!

HomeScience HomeGases Home
Animals
Astronomy

Animals HomeAstronomy HomeAtoms HomeEcology HomeLiquids HomeMeteorology HomeMicroorganisms HomeOceanography HomePlants HomeSolids Home

THERE'S THE EVIDENCE

Did you do the experiment with the water on your hand disappearing? It may be a good idea to do it before doing this one. It is C131.02. At the end, it says that we could get the evaporated water to return. Now, we are going to cause water to evaporate, and then get it back again.

We'll put a small dish of water inside a large glass jar, seal the jar, and watch what happens. [Do you understand the meaning of the word, "seal?" It is more than just putting a lid on the jar. It means to make the lid fit so well that nothing--not even air--can get in or out. We'll make a seal by putting petroleum jelly on top of the rim of the jar before putting on the lid.]

Take a look at the little dish from time to time, and see if the water evaporates.

You can see with your own eyeballs that that water did not disappear. It left the dish (by evaporation), and returned to the sides of the jar (by condensation). So there is the evidence! Everything has to be somewhere!

Let's get a clean, dry jar, and do the same experiment, only using cooking oil in the little dish instead of water. We can do it also with alcohol, or with ice cubes. We might want to feel the droplets that have condensed to see if the oil and the water feel the same.

 
Contact Spike
Any problems with this page? Send URL to webmaster.  Thank you!
 
 
Add to Favorites
 
 
Search this site powered by FreeFind
 
 
 

Send this page to a friend


Back to Spike's & Jamie's Recipe Collection

 

 

 

 

Sign Guestbook    View Guestbook

 

We publish two newsletters a couple of times a month. To subscribe, send a blank email to the appropriate email address.  Topica will send you a message asking if you really intended to subscribe - just click reply - that's it!

Free Recipe Collection Newsletter:
freerecipes-subscribe@topica.com

Jewish Recipe Collection Newsletter:
jewishrecipes-subscribe@topica.com

 

 

Barnes & Noble Home Page  Barnes & Noble Music Page

 

Tired of Geek Speak when 
you have Computer Questions?

 

 

 

WatkinsOnline.com