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How the Apollo Spacecraft Worked
science.howstuffworks.com/apollo-spacecraft.htm
The Apollo program was initiated with the goal of landing a man on the moon. What was the spacecraft that helped make this giant leap for mankind?
What If the Oceans Disappeared?
science.howstuffworks.com/science-vs-myth/what-if/what-if-oceans-disappeared.htm
People would look underground for water and maybe just stay there to escape the fiery hell on Earth's surface. But could humanity really last without the seas?
5th-Grade General Knowledge Quiz
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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 Much Do You Really Know About the World?
play.howstuffworks.com/quiz/how-much-do-you-really-know-about-the-world
Earth is the only planet in our solar system that isn't named after a mythological god or goddess. It's not flat, but it's not a sphere either. We only have one Earth. What do you know about the planet?
How will landing on Mars work?
science.howstuffworks.com/landing-on-mars.htm
Landing on Mars will be one of the most dangerous and rewarding space missions. Learn how landing on Mars will further our understanding of space.
How have NASA space helmets changed optics?
science.howstuffworks.com/innovation/nasa-inventions/nasa-space-helmets-changed-optics.htm
NASA space helmets are nifty devices that allow astronauts to operate in the hostile environment of space, but did you know that the technology behind them has also directly benefitted eyeballs here on Earth? Learn more about NASA and optics.
What would nuclear winter be like?
science.howstuffworks.com/nuclear-winter.htm
If the sight of a mushroom cloud burning above the horizon suggests that the nuclear weapon-equipped world might end with a bang, then nuclear winter presents the notion that post-World War III humanity might very well die with a whimper.
How Much Water Is on Earth?
science.howstuffworks.com/environmental/earth/geophysics/question157.htm
Water is one of the most abundant substances on the planet. About 70 percent of our planet is covered by oceans, but just how much water is there on Earth?
How Auroras Work
science.howstuffworks.com/nature/climate-weather/atmospheric/aurora.htm
An aurora is a light phenomenon caused by solar winds interacting with the Earth's magnetic field. Learn more about auroras.
Does smog make for beautiful sunsets?
science.howstuffworks.com/environmental/green-science/smog-sunset.htm
Many people think that beautiful, blazing sunsets are one upside to living with the smog that hangs over polluted cities. Are they right? Does smog actually enhance sunsets?