Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. Why does orange juice taste bad after you brush ...

Few everyday experiences are as reliably disappointing as taking a big, hopeful gulp of orange juice right after brushing your teeth and getting a mouthful of bitterness instead of sunshine. The clash ...

It’s a mistake you hopefully only make once. In your morning rush to get ready, you brush your teeth before you head to the kitchen and down a big glass of orange juice. Yuck! What makes your clean, ...