H2o STEM Toys

Build a hydraulic Robot Arm with the POWERplus Octopus kit.No batteries or power adapters needed – it runs on water!Impressive range of motion with gr...

Thunderbird Salt Water Powered Monster Car4 wheel drive function. Suitable for ages 10 and aboveThe Thunderbird is salt water powered Monster Car with...

Amazing salt water fuel cell powered Buggy car kitNo batteries, powered by a few drops of salt waterSuitable for ages 10+Replacement fuel cells are av...

Packed full of interesting water purification experimentsLearn the science of cleaning and reusing dirty waterBuild your own water filtration and desa...

Fun & Educational – Introduces kids (5+) to early science concepts through hands-on bubble experiments.Complete Kit – Includes a bubble tray, gian...

Amazing salt water fuel cell powered Buggy car kitNo batteries, powered by a few drops of salt waterSuitable for ages 8+Replacement fuel cells are ava...

Powered by a salt water fuel cell for up to 12 hoursAge 10+ Easy to buildEasy Insert fuel cells to switch on and offBatteries not required, just add a...

Lemon powered clock kit Great educational resourceEnvironmentally friendly Great gift ideaAges 5+