Winners of the bag of gold coins challenge

Congratulations to Emma, Owen, and Nikita of the 3rd grade, Naya of the 5th grade, and Eliza of the 7th grade, for taking 1, 2, 3.... 10 coins from bags numbered 1 through 10, and then seeing how many tenths of an ounce the weight falls short of 55 ounces in order to determine which bag contains the light coins.