Food & Chemistry
Why Do We Cry When Cutting Onions?
Cutting an onion releases a chemical gas that reacts with the moisture in your eyes to form a mild acid. Your eyes water to flush it out.
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Chemistry & Nature
Why Does Ice Float?
Ice floats because it is less dense than liquid water. Water molecules form a rigid hexagonal lattice when frozen, taking up more space than in liquid form.
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Human Body
Why Is the Human Body Made of Water?
About 60% of your body is water. That number is not a coincidence — it is the chemical foundation that makes life possible at all.
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