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What Is a Good Thread Count for Sheets?
home.howstuffworks.com/home-decor/bedroom/thread-count.htm
Thread count means the number of threads woven together in a square inch. Find out what that really means and if we're being tricked by thread count.
Pump It Up! Heart Health Quiz
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The heart is a pump, and like other pumps, break down and need repair. And it does break down for many people -- heart disease is the leading cause of death in the United States. How much do you know about the dangers that threaten it?
From Chess to Key Lime: The Pie Quiz
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Pie is the perfect finish to any meal, whether it's Sunday dinner or a holiday feast. Grab a slice and dig in to our quiz on all things pie!
Why Is the Krebs Cycle Essential for Life as We Know It?
science.howstuffworks.com/krebs-cycle.htm
The main function of the Krebs cycle is to produce energy, stored and transported as ATP or GTP, to keep the human body up and running.
Pluto Is Just One of Millions of Objects in the Kuiper Belt
science.howstuffworks.com/kuiper-belt.htm
The Kuiper Belt is a ring around the sun that's home to millions of comets, moons, dwarf planets and other celestial objects. How did they get there?
Why Does Earth Spin?
science.howstuffworks.com/why-does-earth-spin.htm
Every 24 hours, Earth makes a full rotation on its axis. But why does Earth spin in the first place?
The Make and Model Car Quiz
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From Alfa Romeo to Aston Martin, Buick to Bentley, Chevy to Cadillac, Dodge to Datsun and Ford to Fiat, do you know your makes as well as your models? Head on over to the dealership and take the quiz to find out!
You're an Auto Trivia Expert if You Can Name All These Car Parts
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Oh, the pistons connect to the crankshaft! The crankshaft connects to the transmission! The transmission connects to engine! And the engine makes the whole car go! Think you can finish mapping all these car parts? Tune up this quiz and see!
Can You Score 27/35 On This Difficult WWII Quiz?
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War is terrible but it's important that we remember the past, no matter how horrible. Why? Well, many brave men and women didn't give their lives for nothing, did they? But how much do you know about the greatest ever conflict?
Test Your Firefighting Knowledge With This Quiz
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It's not everyone who can put their own life on the line and run into a fire to save a stranger, but that's what firefighters sign up to do. How much do you really know about firefighting? Take the quiz and see!