Search Results | substance
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How to Remove Iron and Rust Stains
home.howstuffworks.com/how-to-remove-iron-and-rust-stains.htm
When iron starts to corrode, it forms rust, a substance that often leaves behind unsightly brownish stains. Check out our stain removal tips to give your household surfaces a clean start.
Everyday Science: Water Quiz
play.howstuffworks.com/quiz/water-quiz
Water is quite arguably the most important substance on Earth. Its unique properties make it an incredibly versitile tool. Aside from fueling life, it's useful in cleaning, cooking and transportation, just to name a few things.
HowStuffWorks: What is Jessie's Law?
health.howstuffworks.com/mental-health/cgi-opioids-jessies-law-video.htm
What is Jessie's Law, and why might it help the opioid epidemic?
Not Just Rocks: The Geology Quiz
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Geologists study the processes and substances that form Earth. Most of those processes happen over millions of years, but this quiz only takes a few minutes! Find out how rock solid your knowledge of geology is.
What Is Ectoplasm?
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/ectoplasm.htm
Obviously, if we had more evidence of the existence of ghosts, we wouldn't all spend so much time debating the matter. Believers in the supernatural, however, are convinced a substance called "ectoplasm" proves ghosts are real -- but are they right?
Half-Life Formula: Components and Applications
science.howstuffworks.com/half-life-formula.htm
In nuclear physics, the concept of half-life plays a crucial role in understanding the decay of radioactive substances. Scientists use the half-life formula in other disciplines to predict the rate of decay, as well as measure the age of ancient artifacts through carbon dating.
How Ice Cream Works
science.howstuffworks.com/innovation/edible-innovations/ice-cream.htm
Although it's fairly easy to make at home or pick up at your local grocery store, ice cream is actually a very complex substance. Learn what goes into ice cream, how it's made and who invented it.
The Ultimate Addiction Quiz
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Paired with the right (or rather, wrong) circumstances, people can become addicted to just about anything. How much do you know about addiction?
How Nuclear Medicine Works
science.howstuffworks.com/nuclear-medicine.htm
Nuclear materials get used in many forms of nuclear medicine -- everything from PET scans to chemotherapy uses them. Learn how nuclear medicine works.
What If You Ate Uranium?
science.howstuffworks.com/science-vs-myth/what-if/what-if-ate-uranium.htm
You would probably be pretty freaked out if you ate uranium, right? Well, if you've ever eaten a potato or turnip, you may already have done so. How does your body deal with this radioactive substance?