Daily Archives: June 10, 2015


Coral Crystal Garden (Anne Helmenstine)
The coral crystal garden is a colorful and interesting crystal project that resembles an undersea scene. The crystals look like delicate coral. Fortunately, you don’t need an aquarium or access to the ocean to grow these crystals. This simple project only requires ammonia, salt, and laundry bluing: Coral Crystal Garden […]

Coral Crystal Garden Using Laundry Bluing


Animated DNA Molecule (brian0918)
It’s easy to extract DNA from human cheek cells. You don’t even need a lab. Here’s how to do this experiment in your kitchen. What Is DNA? DNA is deoxyribonucleic acid. It’s the genetic material in every cell in your body, except mature red blood cells, which have lost their […]

How to Extract DNA From Human Cheek Cells




Periodic Table - Electron Configuration - BBG - 2015
This periodic table with electron configurations contains each element’s atomic number, element symbol, name, and atomic mass in addition to electron configurations. Each tile is colored to show the element group each element belongs to. The black background provides a nice contrast for the element tiles. A legend tile shows […]

Periodic Table with Electron Configurations – 2015


Black and White Periodic Table - Electron Configuration - 2015
This black and white periodic table with electron configurations contains each element’s atomic number, element symbol, name, and atomic mass to go along with the electron configurations. Use the Periodic Table with Electron Configurations PDF to print yourself a copy. Be sure to use ‘fit to page’ and ‘landscape’ for your print options and […]

Periodic Table with Electron Configurations PDF – 2015