1. plop plop fizz fast
By:Nate Seelig

2. my scientific question
How big of a difference in the rate of a chemical
reaction can temperature make ?

3. my science fair will test
the effect of temperature on the rate of a chemical reaction.

4. variables independent:water temperature dependent:alka-seltzer tablet
controls:amount of water

5. my hypothesis
If i dissolve an alka-seltzer tablet in three different temperatures of water the alka-seltzer will dissolve faster in hot water.

6. HOT WATER Put 118 ml of water in a cup
Heat water in microwave for 1 min
Record water temperature
Open Alka-Seltzer pack
Drop Alka-Seltzer into cup + Start stopwatch at the same time
Stop stopwatch when Alka-Seltzer is completely dissolved
Record time

7. ICE WATER Put 118 ml of water in a cup
Freeze water in freezer for 3 hours
Record water temperature
Open Alka-Seltzer packet
Drop Alka-Seltzer into cup+Start stopwatch at the same time
Stop stopwatch when Alka-Seltzer is completely dissolved
Record time

8. ROOM TEMPERATURE WATER
.Put 118 ml of water in a cup
2.Record water temperature
3.Open Alka-Seltzer packet
4.Drop Alka-Seltzer into cup+Start stopwatch at the same time
5.Stop stopwatch when Alka-Seltzer is completely dissolved
6.Record time

9. Graph

10. Conclusion
the effect of temperature on the rate of a chemical reaction.I am testing what water temperature will dissolve the alka-seltzer tablet the fast. that the hot water dissolves the tablet faster.yes,because they both say the hot water dissolves the tablet faster.I learned that if you put a alka-seltzer tablet in hot water it will dissolve faster.we didn't know which one worked better.I would do it all at the same time.