Have you ever needed to get rid of some chewing gum quickly but spitting it out would cause a scene? Not sure you wanna swallow the whole wad? Chemistry’s got your back. Find out why chocolate makes gum... DISAPPEAR! Stay tuned for our next food tricks video -- we're posting another one on Monday, and then a third one on Tuesday!

An estimated 133 billion pounds of food gets thrown into the trash every year in the United States, so understanding when your food goes bad is important to help reduce waste. Unfortunately, consumers can’t just check the expiration date on the packaging, because the listed date rarely coincides with when the food actually spoils. So how can you tell if your food is still safe to eat? This week, Reactions talks food expiration-date misconceptions and gives you some guidelines to answer that age-old question: Can I still eat this?

That's right. Comets may have helped seed life on Earth. Far out, right? Sarah Everts has the chemical clues that back up this out-of-this-world hypothesis.

Thanksgiving's just around the corner and some of you out there are probably thinking about taking your Turkey game to the next level. But before you whip out that deep fryer, you're going to want to watch this video. Today we're bringing you the do's and don'ts of turkey frying, all the better to help you not burn your house down this year.

Breakouts are a pain and can happen well into your 40s. While there’s no cure to make acne instantly go away, there are a few science-backed tips you can use to help minimize the number of pimples that pop up.

Did you know that the ocean launches bacteria and other goo into the atmosphere? And that those particles can seed clouds? In our last stop of the Speaking of Chemistry Road Trip, atmospheric chemist Kimberly Prather of UCSD and the Scripps Institution of Oceanography drops some serious knowledge on us.

Marathons are tough. Athletes push their bodies for miles and deal with cramping, dehydration and every runner’s worst fear: that extreme form of fatigue called “hitting the wall.” Why is distance running so difficult? With the New York City Marathon kicking off this Sunday, Reactions runs through the science of distance running: why muscles burn, how sweat cools the body and the chemistry of runner’s high.

Studying odors from corpses, researchers are helping find missing bodies lost in natural disasters or hidden by murderers.

Before you stuff your face with candy until you max out this Halloween, we want you to ask yourself how much is too much. Well folks, in keeping with the dark, spooky atmosphere of late October, we're taking a look at how many pieces of fun sized candy can kill you - if all eaten in one sitting. Oh and for you candy corn lovers out there, we're crunches those numbers too.

Four elements have been added to the periodic table this year, completing the seventh row. However, these new elements are not naturally occurring. Scientists had to create them and overcome a number of challenges to do so.