Sugar in juice

Since my kids have been making Find Hidden Candy posters for their science fairs, we've been reading a lot of labels recently. Today I noticed that a 12 oz serving of apple juice has more sugar (40 g) than a can of Squirt (37 g). I guess that makes sense, if soda has been sweetened to resemble juice, but it still surprised me. Need to be aware of sugar in juice as well as soda!