Lava Lamps
Published on Nov 19, 2015
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PRESENTATION OUTLINE
THE SECRETS BEHIND
LAVA LAMPS
Substances with a specific gravity greater than 1 are heavier than water, and those with a specific gravity of less than 1 are lighter than water.
Photo by peterjroberts
So, the wax's gravity is greater than 1, therefore, heavier than water. But when the wax gets hot, it gets lighter, or less dense. Then, it floats, because the gravity becomes less than one.
Photo by Robert Goodwin
BUT, when the wax floats, it also gets further away from the heat source. Therefore, it cools off, and it's gravity becomes greater than 1. So, it sinks! And the process repeats.
"How To Make A Lava Lamp, Retro's Basic Formula." How To Make A Lava Lamp, Retro's Basic Formula. N.p., n.d. Web. 20 Jan. 2014.
"Inventor Edward Craven Walker Biography." Inventor Edward Craven Walker Biography. N.p., n.d. Web. 20 Jan. 2014.
"The History of the Lava Lamp." Smithsonian. N.p., n.d. Web. 20 Jan. 2014. .
"Inventor Edward Craven Walker Biography." Inventor Edward Craven Walker Biography. N.p., n.d. Web. 20 Jan. 2014.
"The History of the Lava Lamp." Smithsonian. N.p., n.d. Web. 20 Jan. 2014.
Photo by slinky2000
