*“culture or sample tube”*
Appearance - finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom
* spherical bottom and vertical sides reduce mass loss when pouring, make them easier to wash out, and allow convenient monitoring of the contents
* narrow neck of test tube slows down the spreading of gases to the environment
Uses - to hold, mix, or heat small quantities of solid or liquid chemicals; to culture, or grow, samples of various organic materials such as bacteria, mold, and yeast
* Boiling Tube - larger tube for boiling substances