Science Questions and Answers

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View your most frequently asked questions on science. Our editors do the research to provide accurate answers to submitted questions.

How long would it take to land a manned spacecraft on Mars?
Which countries in the world don't use the metric system?
How many pieces of paper will one tree make?
What is the difference between a pandemic and an epidemic?
Is it true that if you dropped a penny off the Empire State Building and it hit somebody it could kill him?
Where could I find ideas for a science fair project?
What is Black Spot disease and how do you prevent it and cure it?
Who said or wrote: "If I have seen further it is by standing on the shoulders of giants"?
What percentage of our brain do we use?
What is the size difference between the Sun and Earth?
Is there any correlation between full moons and child birth?
Where do temporary names of new elements come from?
What is the circumference of the Earth?
What does a vexillologist do?
Does sugar affect the freezing of water? Why?
Where can I find information on computer viruses?
Why does a whip make a "crack" noise?
Is it true that old window glass starts to flow towards the bottom of the window sash after a while?
What is gray goo?
Why is the Leaning Tower of Pisa leaning and not falling over?

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Science Questions and Answers

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