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This object can hold some otters laboratory object, so you only have to put the laboratory objects in each hole.
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∙ 12y ago
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How is smelling the contents of a test tube done safely?
Never put your face directly over the test tube. Use your hand to fan the air above the test tube toward you and smell that way.
What test tube brush meant?
A test tube brush is a long thin brush with an extended handle. It is made for cleaning the thin tubes.
What is a test tube cleaner used for?
A test tube cleaner is used as suggested -- it is used to clean test tubes. It is round, and has a modestly long handle so the bristles can reach the bottom of the test tube being cleaned.
What would you use if you were holding and heating a test tube?
When heating a test tube, you would use a test tube holder. It can also be used to hold/ support pipettes, etc. http://www.answers.com/mt/test-tube-holder
What is the use of test tube rack in science apparatus?
Test tube racks are used to support the test tubes but unlike the test tube holder, it can store the test tubes without anyone who will hold the rack... hope this helps!
What do you put your test tubes in safely?
Well you are going to need a test tube holder, but make sure you clean your test tubes thurally before you put them in the holder.
What is a use for a test tube support rack?
Holding test tubes vertically so that the contents do not spill out.
Johnny needs to heat a test tube with chemicalswhat do you suggest that he should do to perform the experimant safely?
When heating test tubes safely in the laboratory:Never leave the test tube stationary in the flame. Move the test tube constantly in and out of the flame.Never point the opening of the test tube towards your face or body; towards a walk way where somebody may walk past; or towards any other person or work station.Point the opening of the test tube along an unoccupied bench area or wall or dead space where nobody walks.You will feel the contents of the test tube heating because the test tube will start to vibrate as the contents heat - take extra care.The bigger the test tube the safer it is. Larger test tubes will be less likely to spray their hot contents out than smaller test tubes.Always wear safety goggles when heating a test tube.Take your time, don't be in a hurry. Carefully wave the test tube in and out of the flame and you will have safe heating of its contents.
What is a test tube holder or rack and what are its uses?
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.
What do you call a piece of metal used to hold and support glassware?
for test tube you will need a test tube holder , and for hot glassware you will need a crucible tongs. Enjoy
What do you use a test tube holder for?
Like the function of a beaker; to hold chemicalsA test tube is another useful science equipment used in experiments. A test tube is used:-1. to carry solids or liquids in small quantity.2. to do experiments, such as knowing the nature of the substance poured in it( acidic, basic or neutral) .basically, test tube's function is to carry substances in science labs.
Where was the test tube made?
when was test tube first made,when and who?
