$ 7.00 · 4.5 (742) · In stock
Power Supply for Etching With Salt Water : 7 Steps - Instructables
Aluminum Can, Saltwater and Charcoal Battery : 4 Steps (with Pictures) - Instructables
Salt Water Energy : 3 Steps - Instructables
More Energy, Cleaner Water : 11 Steps - Instructables
Salt Water Metal Etching : 5 Steps - Instructables
Salt Water Energy : 3 Steps - Instructables
Make a Powerful 9V Rechargable Salt Battery : 4 Steps (with Pictures) - Instructables
Salt Water Energy : 3 Steps - Instructables
How to Make Sodium Hydroxide : 3 Steps - Instructables
DIY Bath Bombs : 3 Steps (with Pictures) - Instructables
Small-scale Wave-power - Free Energy From the Beach! : 6 Steps (with Pictures) - Instructables
FREE ENERGY with SALT WATER - 100% Working
Saltwater Circuit - Activity - TeachEngineering
Rain Detector : 3 Steps - Instructables
Homemade Water Desalinator : 3 Steps - Instructables