Are your kids a little nervous for that first day back? Get them in a mellow mood with this groovy lava lamp experiment. Plus they’ll learn about the scientific properties of oil and water.

Its fluid, groovy aesthetic mirrored the free-spirited ethos of the era, making it an instant cultural touchstone.' So, how do you style a lava lamp in a way that feels contemporary rather than dated?

The company needed some truly random numbers for its security solutions, so it turned to some groovy old tech: lava lamps. In their office is a wall of 100 lava lamps monitored by cameras.