The 1.5hours include:

Anti-Gravity galaxy in a bottle
A fun project to have a go at! The glitter actually rises to the top, instead of settling at the bottom! (6-12 years)

Sensory Ball
A fun STEM project that all ages can enjoy (5 years+)

Lava Lamps
A homemade lava lamp that doesn’t need to be plugged in. (4-12 years)