
Friday, December 19, 2008
Wednesday, December 10, 2008
Laura Alana Bridgette
Backround research: http://www.funology.com,%20www.gooogle.com/http://www.gooogle.com/
50 charly's

ethan#40
Hypothesis: the salt will make the water and the vegetable oil bubble
Experiment: i will make a lava lamp
website:www.wikihow.com,youtube,expermets.com
30 Jasmine's Science Project
What happens when you mix Robitussin with aspirin?
I am going to find out what happens when you mix aspirin with robitussin.
Here is my research:
Robitussin:
http://www.rxlist.com/aspirin-drug.htm
Aspirin:
http://www.rxlist.com/organidin-nr-drug.htm
My "hypothesis" which means, I plan on the expirement to interact and react.
John and Ivonne
Reasearch: http://scifun.chem.wisc.edu/HomeExpts/gluep.htm
http://www.recipesource.com/misc/kids/00/rec0065.html
http://en.wikipedia.org/wiki/Borax
Hypothesis: Gluep is made by combining laundry borax, glue, and water together.
Experiment: Making the gluep
#45Cambria#Kirstine ( Scientific Method)♥☺♦♣♠◘•○
Thomas and Bryan Experament
Research: http://www.wisegeek.com/what-is-mold.htm,
http://www.pested.msu.edu/Resources/pdf/MoldsInTheHome.pdf,
http://www.cityofchicago.org/city/webportal/portalContentItemAction.do?blockName=Health%2fContent&deptMainCategoryOID=-536887958&channelId=null&entityName=Health&topChannelName=Dept&contentOID=536921473&Failed_Reason=Invalid+timestamp,+engine+has+been+restarted&contenTypeName=COC_EDITORIAL&com.broadvision.session.new=Yes&Failed_Page=%2fwebportal%2fportalContentItemAction.do
Hypothesis: mold.....is a fungus in moist areas
Eperiment steps: 1. bread
2.water
3. leav it on sun
ruben,julio josue
- bottle cap
- Vegetable oil
- Food color
- Alka-Seltzer tablet
-water
http://www.stevespanglerscience.com/
Just Fill the bottle 3/4 full with vegetable oil.
Fill the all of the bottle with water (almost to the top but not overflowing).
Add about 10 drops of food coloring. Be sure to make the water fairly dark in color. Notice that the food coloring only colors the water and not the oil.
seperate the Alka-Seltzer tablet into only 8 pieces.
Drop one of the tiny pieces of Alka-Seltzer into the oil and water mixture. When the bubbling stops, add another chunk of Alka-Seltzer. It’s just like a lava lamp!
then when you have used up all of the Alka-Seltzer and when the bubbling has stopped, screw on the soda bottle cap. Tip the bottle back and forth then see the wave. The tiny drops of liquid join together to make one big lava-like blob.
Hypothosis:
IVAN AND ISSAI EXPERIMENT

Check out this link
barbara. Partner:: desiree
Question:
How would you make disappearing ink?
Research:
->. this is the basic chemisty that happens with the ink.
http://chemistry.about.com/od/demonstrationsexperiments/ss/disappearink.htm
http://chemistry.about.com/od/demonstrationsexperiments/ss/disappearink_2.htm
->. these are the materials needed to do the experiment.
http://chemistry.about.com/od/demonstrationsexperiments/ss/disappearink_3.htm
->. these are the directions to continue the experiment.
http://chemistry.about.com/od/demonstrationsexperiments/ss/disappearink_4.htm
Hypothesis:
When we mix the lye with the rubbing alcohol we will be able to make an ink that once exposed to air, be able to disappear.
However, by adding another chemicla to the substance, we hope to be able to retrieve the color form the ink and dreate a dissappearing-reappearing ink.
Experiment:
ingrediants::
0.10 g thymolphthalein for blue ink or phenolphthalein for red ink (1/3 of 1/8 tsp)
10 ml (2 tsp) ethyl alcohol (ethanol) [can substitute 14 ml or 3 tsp of ethyl rubbing alcohol]
90 ml water
20 drops of 3M sodium hydroxide solution or 10 drops 6M sodium hydroxide solution [make a 3 M sodium hydroxide solution by dissolving 12 g of sodium hydroxide NaOH (1 level tablespoon of lye) in 100 ml (1/2 cup) of water.
directions::
Dissolve the thymolphthalein (or phenolphthalein) in the rubbing alcohol.
Stir in 90 ml of water (will produce a milky solution).
Add lye solution dropwise until the solution turns a dark blue or red (might take slightly more or less than the number of drops stated in the ingriants section).
to clarify experiment::
Test the ink by applying it to fabric (cotton tee-shirt material or a table cloth works well). Paper allows less interaction with air, so the color change reaction takes more time.
In a few seconds, the 'stain' will disappear. The pH of the ink solution is 10-11, but after exposure to air will drop to 5-6. The damp spot will eventually dry. A white residue may be visible on dark fabrics. The residue will rinse out in the wash.
If you brush over the spot with a cotton ball that has been dampened in ammonia the color will return. Similarly, the color will vanish more quickly if you apply a cotton ball dampened with vinegar or if you blow on the spot to improve air circulation.
->.hopefully the ink is able to disappear and reappear with the mixture that we were able to conduct.