The Bubbling Cauldron Experiment
The Bubbling Cauldron Experiment
This fabulous science experiment lets you make your own bubbling cauldron potion! What an awesome experiment to share with your friends!
Materials for the experiment:
- A clear, full-sized glass
- Water
- Oil
- Salt
Experiment:
- Fill the glass half-full of water.
- Add about a half-inch of oil to the glass, on top of the water. The oil will float on top of the water because it is less dense than the water, which makes it float.
- Pour in some salt.
- Observe what happens!
The science behind the experiment:
When you pour the salt into the oil and water mixture, you should see that the salt brings down bubbles of oil with it, into the water. When the salt and oil combine, they are denser than the water; thus, they sink. When the salt dissolves in the water, the oil is free to float back to the top of the mixture. Kind of looks like a lava lamp, right?
If you’re still feeling creative, try making a new oil-water mixture and putting sugar in it, instead of salt. What happens? Also try putting in some food coloring (An oozy green? A vicious red? A repulsive yellow?) in either solution to make your potion really look like a crazy concoction!
Hope you enjoyed the experiment!
