THE EFFECT OF SUGAR AND SALT ON BUBBLES

INTRO

Does adding sugar of salt effect a mixture of soap and water to produce bubbles. I already know that sugar makes water thick and syruppy.

HYPOTHOSIS 

 I think that the sugar will make bigger bubbles because the solution is thicker.  the bubbles wont pop as easily.

MATERIALS

+ 3 plastic cups

+ liquid detergent

+ measuring equipment/cup & spoons

+ water

+ sugar

+ salt

+ straw

PROCEDURES

1. label cups 1,2, and 3

1 teaspoon of soap in each cup fill cup with 2/3 cup of water

2. add 1/2 tsp. of salt to #2 stir

3. add 1/2 tsp of sugar to #3 stir

4. dip straw in cup #1 blow bubble from straw

5. repeat for cup #2 &#3

6. observe bubbles

DATA

1. bubbles seemed to be bigger with sugar, bubbles were frothyer with salt.

DISCUSSION

1. The soap cup was medium, sugar was the biggest, salt was smallest, frothyest. I learned that soap is very bubbly. 1 error would be using same straw for all three cups.

CONCLUSION

I accept my hypothosis that the sugar would make bigger bubbles, because the experiment proves it right.