science fair project

SCIENCE FAIR PROJECT
Ice Ice Baby
Madison Call
Mrs. Mcnees
Syracuse Jr. High
STATEMENT OF THE PROBLEM
Can I affect the freezing rate of water by adding salutes such as salt,
sugar, and baking soda?
RESEARCH
Summarize your research here in three to five significant facts:
 1st point-For pure water, the boiling point is 100 degrees Celsius and 212 degrees
Fahrenheit.
 2nd point-The melting point of water is 0 degrees Celsius and 32 degrees Celsius.
 3rd point-The freezing point of water is 32 degrees Fahrenheit and 0 degrees
Celsius.
 4th point-Absolute zero is theoretically the lowest possible temperature, the point at
which all molecular motion would cease.
 5th point-Zero on the Fahrenheit scale represents the temperature produced by the
mixing of equal weights of snow and common salt.
Citations (your sources of where you found the information)
• 1st source-Tom. Boiling and Freezing Point of Pure and Salty Water. 2006.
http://van.physics.Illinois.edu/ga/listing.php?id=1457
 2nd source-Fahrenheit and Celsius (Centigrade) Scales. 2005.
http://www.infoplease.com/ipa/A0001731.html
HYPOTHESIS
If I add salutes such as salt, sugar, and baking soda to water then the
salt or the baking soda will slow the freezing rate of water the most
because it takes more time to freeze all the molecules and line them
up so it hinders the freezing point.
PROCEDURE: MATERIALS
-4 cups water
- 4 cups
-3 TBSP salt
-3 T baking soda
-3 T sugar
-freezer
-timer
-notebook and pencil
-camera
PROCEDURE: STEPS
1. Gather materials.
2. Fill up four cups with 1 cup of water each.
3. Label each cup Salt, Sugar, Baking Soda, and Plain.
4. Fill each cup with 3 TBSP of the corresponding salute.
5. Put the cups in the freezer at the same time.
6. Check the cups every 15 minutes to see the freezing rates.
7. Record data.
8. Graph and chart your findings.
9. Evaluate your hypothesis.
VARIABLES
-Constants: Temperature of freezer, measurements of salutes and
identical cups they were put in, time they were put in freezer
-Control: Pure water
-Independent(manipulated): Time it took for each to reach freezing
point
-Dependent(measured): Salutes (salt, sugar, baking soda)
DATA/OBSERVATIONS
Salt
Sugar
Baking Soda
Regular
15 min.
Not frozen
Not frozen
Not frozen
Not frozen
30 min.
Not frozen
Not frozen
Not frozen
Not frozen
60 min.
Not frozen
Not frozen
Not frozen
Not frozen
90 min.
Not frozen
Not frozen
Not frozen
Not frozen
105 min.
Not frozen
Not frozen
Not frozen
Little icy
120 min.
Not frozen
Little icy
Not frozen
Half frozen
135 min.
Not frozen
Half frozen
Not frozen
Frozen
150 min.
Not frozen
Half frozen
Not frozen
Completely
RESULTS/CONCLUSION
At two and a half hours:
Pure Water- froze
Sugar Water- frosted over (top layer frozen)
Salt Water- not even frozen
Baking Soda Water- not frozen
Salt and Baking soda had similar effects because both Sodium and
Sodium Bicarbonate are very similar. Also other Sodium content will
have similar effects at lowering the freezing rate.
My hypothesis was supported because it was the salt and the baking
soda that took longest to freeze.