ny lava lamp video! Look at one glob of wax and follow its movement for a few minutes. What does it do? Describe its motion. What is causing the wax to rise? What is causing the wax to eventually fall? What is this cyclical process that causes the wax to rise and fall called? In what ways is the lava lamp similar to what is happening in the Earth’s mantle (think size, speed, composition, etc.)? In what ways is the lava lamp different from what is happening in the Earth’s mantle (think size, speed, composition, etc.)?
This is Geology class!
View any lava lamp video!
- Look at one glob of wax and follow its movement for a few minutes. What does it do? Describe its motion.
- What is causing the wax to rise? What is causing the wax to eventually fall?
- What is this cyclical process that causes the wax to rise and fall called?
- In what ways is the lava lamp similar to what is happening in the Earth’s mantle (think size, speed, composition, etc.)? In what ways is the lava lamp different from what is happening in the Earth’s mantle (think size, speed, composition, etc.)?
Q. No 1
Answer: The theory behind glob of wax is something like it consists of two liquids which are very similar in their densities and are insoluble to one another. As the heat is applied the wax gets warmed and rises through the liquid. While passing through the liquid it gets cooled down and loses its buoyancy and again falls down to the bottom. The interesting things happening in the glob of wax is of buoyancy, heat transfer and solubility.
Q. No 2
Answer: In a wax lamp, the heat is received from a light bulb. The heavier wax absorbs the heat, and it expands while absorbing the heat and becomes less dense. The less dense liquid thus moves upwards and rises up.
As the wax rises up through the liquid, it loses heat and again gets cooled, and loses it buoyancy and thus falls back down.
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