When it comes to the TSA’s complicated carry-on rules, it’s often difficult to remember which items are permitted on the plane and which are subject to confiscation. It’s especially perplexing to determine what, exactly, constitutes a liquid or a gel. Consider those substances that hover between solid and liquid forms, like gooey mashed potatoes or lip gloss — where do they fall on the spectrum of solidity? Think you know the answer? Take our TSA carry-on quiz and find out if you have the know-how to make it through the airport security line.
How did you do? Share your results in the comments! To learn more about TSA rules, read Airport Security Q&A.
— written by Caroline Costello