We ran out of vinegar while doing the Baking soda and vinegar volcano. Next day CJ wanted to do the Volcano experiment. I found this cool ketchup and Baking soda experiment in chemistry.about.com site. Hurray! We had lots of ketchup in stock!
Tomato and Mustard Ketchup
Dish wash Soap
Spoon for mixing
Muffin Pan lava:
I found this neat idea of using Muffin pan for the vinegar and Baking soda experiment on the chocolate muffin tree blog.
Mix few drops of dish wash soap with warm water. Pour the soapy water into the Muffin pan cups. Pour Tomato ketch into few of the Muffin pan cups.
Pour mustard sauce into different muffin cups(for yellow lava)
Mix well so that the ketchup mixes with the water
Add Baking soda to start the eruption. The 'lava' reaction is slow and steady when compared to the vinegar and baking soda eruption.
Mix, Mix, Mix!
We did the experiment with a small empty bottle too!
How the Volcano Works
The ketchup contains vinegar which reacts with the baking soda to produce carbon dioxide gas. The gas bubbles expand and rise through the liquid, bubbling out the ketchup.
Observations during the experiment:
Muffin pan: I guess more ketchup and less water will give better results.
Bottle: Fill the bottle almost full with water. Pour ketchup don't mix and add Baking soda for better eruption.
I think we will be doing the experiment again and again, Will keep updated about our findings!