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Can You Guess the Chemical Name of These Everyday Items?
play.howstuffworks.com/quiz/can-you-guess-the-chemical-name-these-everyday-items
Many of the items that we use every day have scientific names, but how well do you know them? Take this quiz if you would like to find out!
Can You Pass This Mental Calculation Math Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-mental-calculation-math-quiz
If your cellphone dies at 8% per hour and you have 5% left, will you make it 45 minutes away to your friend's house before your phone dies? These are the everyday decisions that make or break our day, and they usually come down to some mental calculation. Let's see how you do.