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5th-Grade General Knowledge Quiz
play.howstuffworks.com/quiz/5thgrade-general-knowledge-quiz
Were you a whiz kid at school? How much do you remember from your days in 5th grade? Test your knowledge of 5th grade facts with this simple math, science, English, and history quiz!
How Molecular Gastronomy Works
science.howstuffworks.com/innovation/edible-innovations/molecular-gastronomy.htm
Molecular gastronomy is the art and science of selecting, preparing, serving and enjoying food. Learn about molecular gastronomy at HowStuffWorks.
How is oxygen made aboard a spacecraft?
science.howstuffworks.com/oxygen-made-aboard-spacecraft.htm
Oxygen made aboard a spacecraft is done through the use of oxygen generators. Learn about oxygen made aboard a spacecraft.
What if we lived on the moon?
science.howstuffworks.com/what-if-moon-colony.htm
It's safe to assume there won't be a moon colony any time soon. But it's still a tantalizing thought. But wouldn't it be cool to be able to live, vacation and work on the moon?
Stored Energy Methods (Other Than Rechargeable Batteries)
science.howstuffworks.com/environmental/energy/question247.htm
One way to store energy is to use a battery, but what other ways can we store energy? Learn about different ways to store energy at HowStuffWorks.
Why You Should Stop Raking Fall Leaves, Stat!
home.howstuffworks.com/stop-raking-leaves.htm
Stop bagging those leaves and putting them curbside to be hauled off to the landfill. There's a better way - for your lawn and the environment.
Who Invented the Toilet? A Brief History of the Flush
science.howstuffworks.com/innovation/everyday-innovations/toilets-past-future-flush.htm
Who invented the toilet? While we wish it were so, it wasn't Thomas Crapper. Surprisingly, toilet design hasn't changed much since the first "water closet" patent in the 1500s.
Can You Pass This Periodic Table Trivia Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-periodic-table-trivia-quiz
Let's take a trip back to high school chemistry class! Do you remember all those fun things you were taught about the periodic table? Jog your memory with this quiz, and we'll tell you how much knowledge your big brain managed to retain.
How Laser Analysis Works
science.howstuffworks.com/laser-analysis.htm
Laser analysis is advancing everything from forensics and archaeology to health care and art history. Learn how laser analysis technology works.
Is gasoline more dense in the morning?
auto.howstuffworks.com/fuel-efficiency/fuel-economy/gasoline-more-dense-in-morning.htm
Is gasoline more dense in the morning? Should you fill up before the afternoon? Find out at HowStuffWorks.