it is used fr a lot of things like to shake things
Test Tube brushes are used to easily clean the test tubes .
used to chemical test
apparatus
this is an instrument in the laboratory that is used to clean various kinds of test tubes.
condenser
the answer is none
beaker,test tube,
beaker,test tube,
The test tube holder has many functions. It can be used to hold test tubes, making it easy to investigate the contents of the test tubes. These holders can also be used to hold stirring rods used in the laboratory and pipettes.
A test tube holder or rack is used in a laboratory to hold or support test tubes containing chemicals or other contents awaiting further operations. Although it is called a test tube holder, it is also used to hold/support pipettes, etc. Since a test tube has a rounded bottom, it cannot stand by itself; the rack is a convenient and necessary piece of laboratory equipment for the storage of test tubes.
In the laboratory the funnel is used for filtrations.
Coagulation time is the test in which venous blood is allowed to clot in a test tube.