a test tube rock
is used to measure liquids
A test tube 13 mm (about half an inch) in diameter and 100 mm (a bit under 4 inches) long.
Ya... In a test tube add some aluminum foils and some amount of NaOH... Introduce the flame near mouth of the test tube... Then see the magic...
Killing all living organisms in a test tube typically involves using a sterilization method such as autoclaving, which uses high pressure and high temperature steam to destroy all microorganisms. Another method is to use chemical disinfectants like bleach or ethanol to kill any remaining organisms. It is important to follow proper sterilization procedures to ensure complete elimination of all living organisms in the test tube.
that depends on the kind of test tube that you have. if a test tube is calibrated then it measures the volume of a liquid that is placed inside it. if the test tube is non calibrated then its meant for storage and mixing so it does not measure anything..
The main difference between the Widal slide test antigen and the Widal tube test antigen lies in the method of reaction visualization. In the Widal slide test, the reaction is observed on a glass slide under a microscope, whereas in the Widal tube test, the reaction is seen in small test tubes. Both tests detect antibodies against specific Salmonella antigens, but differ in their setup and visual interpretation.
test tube rock
i love it
used to chemical test
To hold test tubes. LOL
A test tube rack is used to hold up test tubes. This is so they do not tip over and spill what is in them.
To hold your test tubes in, or to keep them upright.
Chemists, biologists.
used to hold small amounts of solution.
A test tube brush is a brush that cleans up your test tube when it is wet or messy.A test tube brush is used to easily clean the inside of a test tube.A test tube brush is a couple of wires spun together with bristles on one end in the shape of a test tube. They come in all different sizes and materials for all different size test tubes and uses.
Test tube stands have a very simple use. They are used to hold test tubes during experiments to prevent them from falling over and spilling.
A test tube holder is a device to ...wait for it...hold test tubes ! ;-) Usually a rack or clamp that keeps them upright (& full if in use).
Very simple, place the test tubes in the holder.