Does campfire smoke follow you? It's not your imagination. Here's a look at the science of how it works and what you can do to stop it. Why Does Campfire Smoke Follow You? Recently updated ! This entry was posted on May 15, 2022 by Anne Helmenstine (updated on May 15, 2022)
Learn what reverse osmosis is and how it works for water purification. Learn what it does and does not filter out of water. What Is Reverse Osmosis? This entry was posted on February 15, 2022 by Anne Helmenstine (updated on February 21, 2022)
Learn how to remove a glass stopper that's stuck on a decanter or piece of chemistry glassware easily and effectively. How to Remove a Stuck Glass Stopper This entry was posted on February 2, 2022 by Anne Helmenstine (updated on March 12, 2022)
Learn how a one way or two way mirror works and see how to tell if a mirror is two way using three simple and easy tests. How a Two Way Mirror Works This entry was posted on August 24, 2021 by Anne Helmenstine (updated on August 25, 2021)
Learn why helium balloons deflate and sink. Explore the effect of temperature on gas density and use it to make a balloon float. Why Do Helium Balloons Deflate and Sink? This entry was posted on July 4, 2021 by Anne Helmenstine (updated on July 12, 2021)
Is it true real snow doesn't melt when you put a lighter to it or try to set it on fire? Here's the answer and the science behind it. Why Doesn’t Snow Melt When You Put a Lighter to ... This entry was posted on February 25, 2021 by Anne Helmenstine (updated on March 12, 2022)
Learn about the difference between oxygen bleach and chlorine bleach. Compare the pros and cons of each type of bleach. Oxygen Bleach vs Chlorine Bleach This entry was posted on February 2, 2021 by Anne Helmenstine (updated on January 26, 2022)
Learn about mood ring colors including mood ring color meanings, how the colors are produced, and whether the rings work to tell emotions. Mood Ring Colors and Their Meanings This entry was posted on December 2, 2020 by Anne Helmenstine (updated on May 2, 2021)
Learn the causes and risks of yellow snow. Find out about other colors of snow, including red, green, and blue. Yellow Snow Causes and Risks (And Other Snow Colors) This entry was posted on November 29, 2020 by Anne Helmenstine (updated on September 12, 2021)