Learn about electron affinity in chemistry. See the electron affinity trend and learn about the elements with the lowest and highest values. Electron Affinity Trend and Definition This entry was posted on August 31, 2022 by Anne Helmenstine (updated on January 3, 2023)
Learn about parasitism in ecology. Get the definition and see examples of parasites and their host species. Parasitism Definition and Examples This entry was posted on August 30, 2022 by Anne Helmenstine (updated on September 25, 2022)
Learn why chemistry is called the central science and see how it connects all of the sciences and applied disciplines together. Why Is Chemistry Called the Central Science? This entry was posted on August 28, 2022 by Anne Helmenstine (updated on August 29, 2022)
Explore the reasons why chemistry is so hard and get tips for success when studying this interesting and exciting science. Why Is Chemistry So Hard? Tips for Success This entry was posted on August 27, 2022 by Anne Helmenstine (updated on September 7, 2022)
Learn about the integers in math. Get their definition, see examples, and learn their properties and rules. Integers – Definition, Examples, and Rules This entry was posted on August 24, 2022 by Anne Helmenstine (updated on October 3, 2023)
Learn about mass defect in chemistry and physics, including how it works, its formula, and how to calculate it. Mass Defect Definition and Formula This entry was posted on August 23, 2022 by Anne Helmenstine (updated on May 13, 2023)
Try the egg in vinegar experiment and dissolve an egg shell using acetic acid. Examine the naked egg and see if it bounces like rubber. Egg in Vinegar Experiment – Make a Rubber Egg This entry was posted on August 21, 2022 by Anne Helmenstine (updated on January 1, 2023)
Do a DNA model project at home or in the classroom. Make edible DNA models or use other common household materials. DNA Model Project – 3 Easy Methods This entry was posted on August 20, 2022 by Anne Helmenstine (updated on September 16, 2023)
Learn what molar mass is in chemistry and how to find it. Get example calculations for NaCl and CO2. See how it differs from molecular mass. Molar Mass and How to Find It This entry was posted on August 17, 2022 by Anne Helmenstine (updated on August 19, 2022)