Mini Lava Lamp @Teachersource

Uploaded April 2019 | Updated September 2026, 2 weeks ago

An igneous geology experiment that's fun and informative. Combine oil, water, and a tub tint to make a mini "lava lamp" - a replica of the magma blobs that move under the Earth's crust. Includes a sample of quartz monzonite. Packaged in a neat blister pack. The perfect gift for an earth science enthusiast!
Available at teachersource.com/product/mini-lava-lamp/density

$Disappearing Beaker This clear beaker has no markings and bends light to the same degree as cooking oil. The borosilicate glass and the oil have roughly the same index of refraction. When this beaker is immersed into a container of oil, the beaker becomes invisible. Package includes the beaker and instructions. You supply the outer container which can be any clear, colorless container with at least a 4 inch opening. Drop pieces of broken borosilicate glass into a large container of oil and watch the pieces disappear. Then, using tongs, reach in and remove a previously hidden, unbroken beaker. Ask students to explain. Available at https://www.teachersource.com/product/the-disappearing-beaker/light-illusions$

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