You may have fond memories of doing the flame test lab in chemistry class, but in case you need a refresher – a flame test is a kind of analysis used in chemistry that helps detect metal ions in a sample. When the sample is introduced to a flame, the flame changes color depending on which element is present! This fineliner pen pack lets you write in some of your favorite flame colors.

.4 mm tips

Each pack contains 6 unique colors:
Strontium 
Calcium 
Sodium 
Copper 
Selenium 
Cesium