green for chemistry
yellow
another name for test tube is culture tube or sample tube
Hey! The reason it seems to disappear is because of the refraction and absorption of light and colour. When light enters the colourless liquid, colour is obviously absorbed. The light waves refract ("bounce") off the glass test tube and leave the glass beaker (containing the colourless liquid). Because the liquid and solid are the same colour, it creates the illusion of the test tube disappearing.
It depends on what size test tube you are using.
If a test tube is clean and dry, then there should be nothing in it.
You first get a bowl of tap water, get a test tube with the argon in it. Take out the cork screw out of the test tube. Get a splint put it over the test tube when you open it and it it pops that means it is a metal
purple top
Blue
Get a test tube filled with lime water, then breathe into the test tube and if the lime water turns a milky white colour then there is carbon dioxide present!
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pink
The tube connecting the renal hilus of the kidney to the bladder is the ureter. In the renal hilum the ureter, renal blood vessels and nerves enter or exit the kidney.
when was test tube first made,when and who?
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube
renal tubules
perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test perform a tube leak test
when zinc carbonate is heated it' white colour changes to yellow . And when it is cooled it again changes to it original colour