Get the control group definition and examples in an experiment. Learn how the control group differs from the a control variable. Control Group Definition and Examples This entry was posted on February 28, 2023 by Anne Helmenstine (updated on March 7, 2023)
Learn what the placebo effect is, how it works, and its uses in scientific research, medicine, and psychology. Placebo Effect – What It Is and How It Works This entry was posted on February 26, 2023 by Anne Helmenstine (updated on March 1, 2023)
Get neptunium facts, including the history of its discovery, the element's uses, and its chemical and physical properties. Neptunium Facts (Np or Atomic Number 93) This entry was posted on February 25, 2023 by Anne Helmenstine (updated on March 1, 2023)
Explore Easter science experiments and STEM activities, including candy projects, Easter eggs, crystals, and flowers. Easter Science Experiment and STEM Activities This entry was posted on February 22, 2023 by Anne Helmenstine (updated on April 8, 2023)
Learn what a solar eclipse is, how often one occurs, and how the different types of solar eclipses work. Get dates of upcoming ones. What Is a Solar Eclipse? This entry was posted on February 21, 2023 by Anne Helmenstine (updated on March 22, 2023)
Perform the fabric dye chemistry experiment and learn why the same dye produces different results, depending on the fiber composition. Fabric Dye Chemistry Experiment This entry was posted on February 19, 2023 by Anne Helmenstine (updated on March 1, 2023)
Learn how much you poop in a lifetime, a year, and a day. Get other fun and interesting facts about feces, like how much poop weighs. How Much Do You Poop in a Lifetime? This entry was posted on February 18, 2023 by Anne Helmenstine (updated on February 20, 2023)
Get the nucleic acid definition and examples. Learn about the types and functions of nucleic acids in organisms. What Is a Nucleic Acid? Definition and Examples This entry was posted on February 15, 2023 by Anne Helmenstine (updated on February 20, 2023)
Learn what an acid is in chemistry. Get the acid definition and examples and learn about the properties of these compounds. What Is an Acid in Chemistry? Definition and Examples This entry was posted on February 14, 2023 by Anne Helmenstine (updated on February 20, 2023)