Have you ever written your name with plumbago?

Have you ever written your name with plumbago?

Plumbago is another name for Graphite.

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What kind of shark is the fastest?

What kind of shark is the fastest?

The Shortfin Mako (Isurus oxyrinchus) is considered the world's fastest shark.

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How far below Earth’s surface can bacteria survive?

How far below Earth’s surface can bacteria survive?

So far, we know bacteria can survive 2.8 kilometers (1.7 miles) below the surface.

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Which NASA Space Shuttle has flown the most missions?

Which NASA Space Shuttle has flown the most missions?

Discovery has flown 39 missions.  How does that compare to the other shuttles?

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How far can a tree kangaroo jump?

How far can a tree kangaroo jump?

They can jump up to 9 meters (30 feet) from branch to branch.  That's not the only thing special about them.

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What would happen if all the ice in the world melted?

What would happen if all the ice in the world melted?

Sea level would rise and large parts of the world would disappear. How likely is a complete melt down?

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