Also on these boards
no helium! just fill a water bottle 1/3 full with vinegar with a funnel. With another dry funnel, pour baking road into balloon (about 1/2 way). Cover top of bottle with balloon. DON'T LET BAKING SOADA SPILL INTO THE BOTTLE. Then lift balloon and let baking soda fall into vinegar. Mixture will fizz and expand balloon!
DIY Helium balloons !!! No helium needed to fill balloons for parties. How to: just vinegar and baking soda! I NEED TO REMEMBER THIS! this is important since helium is not a renewable source and is in such short supply. #diy #helium #balloons
A volcano in a mug. Neat idea to show kids how they work. Much more accurate than the old baking soda/vinegar idea.