Lava lamps

Lava+lamps

By: Tamanno Alimova

Lava lamps are a pretty cool object. They can be so fascinating to watch, I could stare at it for hours! Which brings us to a very important question, how do lava lamps work? How they work is related to engineering because you have to think of an idea and build it. Lava lamps are also chemically engineered because there are different chemicals inside the heat resistant glass that are being “mixed” together. There’s just a lot of steps and tools and machines that you would need to build a lava lamp.

The idea behind a lava lamp is to get two substances that would not mix with each other, and put them together. Which is wax and water or oil and water. There is a light bulb at the bottom of each lava lamp, which is there to produce the heat needed for this whole lava lamp to even work. When the wax is furthest from the light bulb, (at the top) it is cold so it becomes denser and heavier than the water and starts to sink to the bottom. When the wax reaches the bottom and is being heated by the light bulb it becomes lighter than the water and then starts to float up again. This process happens over and over again.

The “lava” (wax) is made up of perchloroethylene.

The liquid (water) is made up of pure salt, pure water, ethylene glycol, and a coloring agent.

That’s how lava lamps are made. They are a amazing and wonderful, and they also make a great night light.

https://science.howstuffworks.com/innovation/science-questions/question36.htm