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How the Periodic Table Works
science.howstuffworks.com/periodic-table.htm
The periodic table currently organizes more than 100 named elements and several unnamed ones. Learn about the periodic table.
Do you really need to have a period every month?
health.howstuffworks.com/wellness/women/general/monthly-period.htm
A monthly period is how Mother Nature would have her way with women, but is a monthly period necessary? Birth control manufacturers don't think so.
Benefit Waiting Periods
health.howstuffworks.com/medicine/healthcare/benefit-waiting-period.htm
Benefit waiting periods are how long you have to wait before health care coverage can begin. Read about the types and rules of benefit waiting periods.
Can a woman get pregnant during her period?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/pregnant-during-period.htm
Can a woman get pregnant during her period? Find out whether a woman can get pregnant during her period in this article.
It's Elementary: The Periodic Table Quiz
science.howstuffworks.com/periodic-table-quiz.htm
The periodic table of elements was an important turning point in the history of the chemistry. Take HowStuffWorks' periodic table quiz to learn more.
Do Cats Have Periods? Not Like Humans, but Cats Do Have Cycles
animals.howstuffworks.com/pets/do-cats-have-periods.htm
If you're a pet parent with a female kitten, you may wonder: Do cats have periods? The answer is a bit complex.
Which Periodic Element Are You?
play.howstuffworks.com/quiz/which-periodic-element-are-you2
While the periodic table of elements might seem boring, the elements can be fiery and reactive just like people. Take this quiz to find out which element you are most like!
In Which Time Period Do You Belong?
play.howstuffworks.com/quiz/what-time-period-do-you-belong
Do you dream of technology or of riding around in the Wild West? Are you a person made for this modern world or some world of the distant past? Take this quiz and find out!
Which Time Period Embodies Your Personality?
play.howstuffworks.com/quiz/which-time-period-embodies-your-personality
Do you ever feel like your personality belongs in another era? After this quiz, you'll know if you were born at the right time or if you've missed your mark by a century or two.
Should Licensed Drivers Be Tested Periodically?
Experts say there's no real benefit from retesting experienced drivers, except in special situations. HowStuffWorks looks at the reality.