An Econ Teacher Gave His Senior High School Students His Personal List Of Wisest Words?ref=pinp nn An econ teacher gave his senior high school students his personal list of wisest words….and they make a lot of sense.
No helium needed to fill balloons. just vinegar and baking soda!No helium needed to fill balloons for parties.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