Perform the gallium beating heart experiment using either of two methods. Both are safer than the mercury beating heart. Gallium Beating Heart Experiment This entry was posted on January 12, 2022 by Anne Helmenstine (updated on July 15, 2023)
Make a lemon battery and use it to power an LED or other small electrical device. Learn how the experiment works. Lemon Battery Experiment This entry was posted on January 5, 2022 by Anne Helmenstine (updated on January 1, 2023)
Colored fire spray bottles demonstration the principles of the flame test and emission spectra. Here is how to make and use them safely. Colored Fire Spray Bottles This entry was posted on December 28, 2021 by Anne Helmenstine (updated on December 14, 2022)
Find fun Christmas chemistry projects and experiments, including silver ornaments, crystal snowflakes, fake snow, and colored fire. Christmas Chemistry Projects and Experiments This entry was posted on December 23, 2021 by Anne Helmenstine (updated on January 1, 2023)
Learn how to make copper sulfate, a blue chemical used for growing crystals and other chemistry experiments. How to Make Copper Sulfate (Copper Sulphate) This entry was posted on December 22, 2021 by Anne Helmenstine (updated on July 15, 2023)
Learn how to make sodium silicate from common household ingredients. Sodium silicate is water glass or liquid glass. How to Make Sodium Silicate – Water Glass or Liquid ... This entry was posted on December 21, 2021 by Anne Helmenstine (updated on December 26, 2021)
Perform the tin hedgehog experiment and grow spiky tin crystals. Here are two easy methods and a look at the chemistry of how it works. Tin Hedgehog Experiment – Easy Metal Crystals This entry was posted on December 8, 2021 by Anne Helmenstine (updated on January 1, 2023)
Perform the genie in a bottle chemistry demonstration and learn the chemistry behind how this exothermic reaction works. Genie in a Bottle Chemistry Demonstration This entry was posted on December 5, 2021 by Anne Helmenstine (updated on September 21, 2022)
These edible slime recipes have all the squishiness of regular slime, plus they are safe to eat. Here are several recipes to choose from. Edible Slime Recipes This entry was posted on November 16, 2021 by Anne Helmenstine (updated on November 29, 2021)