Hoorayyy, it's almost Halloween! Here is a selection of our favourite DIY Halloween Science Experiments for kids. There are 10 Halloween Science Experiments as follows: Bubbling Witch's Brew, Spooky Lava Lamps, Halloween Balloons Experiment, Hungry Vampire Experiment, Shaving Cream Spooky Clouds, Floating Ghosts, Pumpkin on a Stick, Disappearing Ghost, Creepy Crawly Spiders, Halloween Oobleck