What is test tube and how to use the test tube?
A test tube is a piece of special glass, of different sizes, that can be heated or get cold. You can test small-sized chemical reactions in this tube, by combining chemicals or by heating it to see what happends at a certain temperature. You can use the test tubes in many ways, but always make sure to wear safety goggles and a lab coat! Even with testing water! If the water get’s hot, it can splash right into your eye. Also make sure to point the tube’s opening away from yourself and NEVER point it at other people or animals. Safety first!
Related Questions
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