 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.
Vithiya, age 14 of Malaysia wrote:
I use some food colouring in it and it was awesome! The teachers were really attracted by this experiment!
Alayzia, age 10 of Mount Vernon, NY wrote:
it bubbled everywhere.
Marcus of Lauderdale Lakes, FL wrote:
The experiment looked like lava.
Faith of Schweinfurt, Germany wrote:
The bubbles went up and down, just lide a lava lamp! It was so cool!
Christa, age 11 of Saint Croix wrote:
i used it and it was cool! I added blue color and it looked like a lava lamp.
Savannah, age 11 of Dothan, AL wrote:
I saw the bubbles in the experiment and it really works!
Indira, age 14 of Malaysia wrote:
it was cool! it make more bubbles. I try it wif food colouring, and my bubbles were colourful!
Emily of Olympia, WA wrote:
When I did the experiment there were big bubbles. The bubbles were yellow and it looked like blobs of oil.
Jamie, age 4 of Jacksonville, FL wrote:
It was prity. my mommy mad it peenk!
Shelby, age 13 of Tampa, FL wrote:
I added food coloring and it looked awesome.
Olivia, age 13 of Houston, TX wrote:
the bubbles appeared verry quickly and it was fun to do.
Pipeert of Mexico wrote:
It bubled up.
Shelby of Tampa, FL wrote:
I did it for something that is like a science fair flea market. It is supposed to interest little kids and it worked perfectly when I did it! I added food coloring and it was sooo cool! Im sure it will be awesome when I have to perform it in front of those kids! it was awesome!!!
Chelsey, age 9 of Philadelphia wrote:
when I was using it & I put my last ingreediant I was done and I saw bubbles
Jennifer, age 11 of New Mexico, NM wrote:
it looked amazing. I put food coloring and it looked like a lava lamp but smaller. I even got 1st place in my 5th grade science fair
Chanda, age 12 of Wyoming wrote:
It started to fizz anmd a lot of bubbles came up with the water.
Antonisha, age 11 wrote:
It fizzed so loud, the bubbles were big. It wa fun!!!
Janina, age 5 of Albama, AL wrote:
Bubbles cam up
Joshua, age 8 of Canada wrote:
when I put soda; jucie shuger it was giagant bubble
Madison, age 8 of Biloxi, MS wrote:
bubbles spilled over the top and spilled down the sides.
Robyn, age 10 of Jersey City, NJ wrote:
I added food coloring, glue and baking soda and it looked like a really colorful lava lap.
Angues of Green Bay, WI wrote:
when I used regular water the bubels came to the top and popped when we added warm water the bubles moved
Alissa, age 11 of Mount Horeb, WI wrote:
it was cool I saw a lot of bubbles
Beana of Burbank, WA wrote:
Well we did the Sand, Salt, Sugar with oil. It was AWESOME. It gave us a 3-D View. Then we mixed it all together and it gave us more bubbles.
Rachelle, age 13 of Lake Worth, FL wrote:
when I put the salt in the water and oil it really look like a lava lap it went up and down it was really cool. the I did the sugar I went up and down but not as much as salt, after that I did baking soda I heard fizzing but it din't see it. It sounded like little bubbles poping. so if you were to do then science project on that it would be salt that looked more like a lava lap.
Susan, age 9 of HI wrote:
it worked perfectly! SO COOL!
Keeana, age 9 of Austin, TX wrote:
I added baking soda to the oil and water and it looked like foam. It was very cool.
Gayatri, age 16 of Mumbai wrote:
Yes, it was nice and there was bubbles also but they were small ones
Caspian, age 8 of Sebastopol, CA wrote:
When I poured the oil in, it bubbled like a lava lamp, but when I poured the salt in, I discovered that the oil makes it stick together and it doesn't float back up. And there's a big glob of salt at the bottom. Try stirring it and see what you see! And what you will see will be amazing!
Misha, age 10 of Louisville, KY wrote:
The salt and the oil are more dense than the water. The oil made big clumps of sugar go to the bottom. The sand came down all at once, with a layer of sand at the top. Those are my observations.
Nicole, age 10 of Louisville, KY wrote:
When I put the oil in it went to the bottom and then it came back upand floated at the top and it had bubbles of oil. When we poured in the salt it went through the layer of oil and it went to the bottom. When we poured in the sugar it went down to the bottom in a big clump. When we poured in the sand some didn't make it through the layer of oil, but some went down the side of the cup. Some flaoted up and floated at the top.
Evan, age 10 of Louisville, KY wrote:
when I poured the oil in the water, it went to the bottom of the cup then the oil went to the top to start floating. the suger sank and went down in ond big lump, the same thing happened with the salt. then when I poured the sand it sank buy stayed togeter
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