A hollow transparent pen without rifile
test tube is where u keep ur filled or unfilled test tube during experiment.
It is a structure that looks like a tube
when was test tube first made,when and who?
the test tube has air inside it.In the outer surface of the test tube is water.Due to the different media across the test tube surface the reflection of light occurs through the glass surface.Hence the test tube shines(behaves)like a mirror
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube
test tube is where u keep ur filled or unfilled test tube during experiment.
Heated test tube with a bunsen burner with closed air holes would result to the test tube having some kind of black material at the bottom, it looks like a burnt coal that stick to the bottom of the test tube. This happens because the flame is not a good flame.
A test tube, a paper towel roll. A roll of toilet paper. A coke can. A barrel.
It is a structure that looks like a tube
Cochlea.
Cochlea.
The cochlea
when was test tube first made,when and who?
the test tube has air inside it.In the outer surface of the test tube is water.Due to the different media across the test tube surface the reflection of light occurs through the glass surface.Hence the test tube shines(behaves)like a mirror
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube
the pulmonary artery looks like a tube, I think...
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