look before reading ahead — which one would you choose?
The Objects Inside the Glasses
Each glass contains a different item:
Glass A: Paperclip
Glass B: Baseball
Glass C: Eraser
Glass D: Wristwatch
At first, many people assume all four glasses contain the same amount of water because the water levels appear identical.
But that’s exactly where the trick lies.
The Secret Is Water Displacement
To solve this puzzle, you need to think about one important scientific principle: displacement.
When an object is placed into water, it takes up space inside
