According to the agency, peanut butter is a liquid—even if, back then, plenty of people on Twitter seemed to disagree. The decision ultimately launched a debate that Thrillist and many other ...

You can even turn to everyday household products you might already have, like liquid laundry detergent, dish soap, baby ...

If ice is warmed enough, it can change to liquid water. Heating a substance makes the molecules move faster. Cooling a substance makes the molecules move slower. Students see a video of water freezing ...