 your results
Sent in by:
Margaret of Jackson, NJ
Mix up a bubbly brew.
- clear glasses
- water
- oil
- salt
- sugar
- sand
- Check with an adult before you begin.
- In the ZOOMscis, Dancing Raisins and Dancing Raisins II, you can make different objects fall and rise in water. You can do this with bubbles of oil too!
- Fill a glass half full of water.
- Add about a half-inch of oil. The oil will float on top because it is less dense than the water.
- Pour in some salt. What do you see?
- When you pour in the salt, it brings a bubble of oil down with it. The salt and the oil together are more dense than the water, so they sink. When the salt dissolves in the water, the oil floats back to the top because now it is less dense than the water.
- See if you can make cauldron bubbles with different materials. The ZOOMers tried sugar and sand.
- Make predictions about what you think will happen with each different material.
- Record your results and send your discoveries to ZOOM!
What happens if you make Cauldron Bubbles using hot water? How about if you use very small amounts of salt? In the ZOOMsci, What's More Dense?, you can compare the density of different liquids. Can you make Cauldron Bubbles with liquids other than oil and water? Think of one variable to test, make some predictions and share your results with the ZOOMsci-entific community.
Joelle, age 8 of Seattle, WA wrote:
Nothing! I am quite suprised... the science experiments usally work.
Yanique, age 13 of Brooklyn, NY wrote:
it was crazy like a whole bunch of bubbles were flyin up and down wow I even did this for my science project at school they loved it
Cynthia, age 12 of New York, NY wrote:
Well I use others meterial instaed of using sand I use Black peper. It was crazy.
Henry, age 11 of Sugar Land, TX wrote:
It was cool because when I put the salt in, a bubble covered in salt came down like a clod of dirt.
Luis, age 10 of Manhattan, NY wrote:
everything went allright and I put food coloring and it looked like a lava lamp
Julia, age 10 of Fremont, CA wrote:
Most of the bubbles sank but it was cool seeing the bubbles. Thanks for sending this in!
Davis of ND wrote:
I loved this expirament it was so cool. The oil was like up then down then up then down then up then down. I was like whoa
Hollie, age 13 of Fall River wrote:
well I got it 2 bubble by mixing backing soda and lemon juice and bubble bath.
Adrian, age 10 of South Bend, IN wrote:
It wsa toally cool dude it was up down and then up I was like cool!
Hannah, age 6 of New Port Richey, FL wrote:
The oil was in the bubbles. some of the bubbles went up, and a lot of the bubbles went down.
Kittey, age 12 wrote:
me and my friend used this for a school experiment and it was great
Brandon, age 8 of Carteret, NJ wrote:
when I did it with salt it went all sort of crazy. When I did it with sugar it didn't do much.
Rowan, age 12 of Sydney, AUS wrote:
when I did it didnt quit work but it did after I put in alot of oil
Mystery of Jamaica wrote:
these cule bubbles formed and it was so cule OMG!!!
Elizabeth, age 11 of Austin, TX wrote:
When I did the experiment it didn't work right away, but then it worked a second time.
Emily, age 13 of Bloomington, IN wrote:
My cauldron bubbles experiment was amazing!!! When I did it bubbles went all over! Thank you so much for posting this fun experimet!
Leon, age 8 of Honolulu, HI wrote:
the bubbles sank
Calicia, age 12 of Atlanta wrote:
when I first put salt in the oil and water, then added slt the salt went down quickly, so I put dish detergent in it, hten added salt. it went down slower and it looked cool.
Anisah, age 10 of Sudbury, ON wrote:
What happened was it lasted for a second, but then I added more salt and it lasted longer. Then I added food colouring and it looked so cool. So for anyone who wants to try it should add food colouring... it looked like a lava lamp.
Bianca, Ian, Dawn of Providence, RI wrote:
The salt took some of the oil down. The sugar did the same thing as the salt. The sand carried a lot down but also some of the sand stayed down with the oil.
Katherine, age 12 of Kansas City, MO wrote:
I did it once by myself and it worked perfectly! It looked like a lava lamp. Then I did it with my friend, and she put in WAY too much of everything. It was a mess, but fun!
Valeria, age 10 of Maitland, FL wrote:
This experiment had ended... with the cup with the sand went faster because it was heavier then the sugar.
Jasmine, age 12 of Chicago wrote:
What hapen was that it start to bubble up and it did look cool.
Arlene, age 7 of NY wrote:
With cornstarch, it went down really slow and not much bubbles.
Bailey, age 10 of Lenexa, KS wrote:
We added green suger sprinkels first, that worked pretty well and colored the water. Then we put in baking soda and viniger. we got bakeing soda lumps that sent bubbles up into the vineger layer, and bubbles caught in the water and oil. then I added more sprinkles and some salt. I had LOTS of bubbles.
Shay, age 10 of Thornton, CO wrote:
It worked. It was so awsome I did it at my school for my class
Laniah, age 9 of New York wrote:
It started to bubble.
Cameron, age 5 of Loganville, GA wrote:
We tried it with baking powder and toothpaste. It made lots of bubbles with baking powder and didn't make as many bubbles with toothpaste. It was really, really cool!
Mary, age 10 of Harrisburg, PA wrote:
The salt, sand, and sugar all made it bubble!
Jenna, age 10 of Houma, LA wrote:
I did it and nothing hhappened.
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