I think you're talking about a bottle brush. It has a bunch of bristles organized 360 degrees around a piece of wire so that you can scrub the nasty bits out of glassware. There's a picture in the following link: http://www.homebrewery.com/images/bottlebrush.jpg.
another name for test tube is culture tube or sample tube
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
It is subjective as to whether a test tube baby is immoral or not. Some religions feel that it is.
A test tube cleaner is a tool used to scrub and clean test tubes, typically made of durable materials like nylon or stainless steel. It is used by inserting it into a test tube along with cleaning solution or water, and then rotating the cleaner to remove any residue or contaminants from the interior surface of the test tube.
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.
Usually a test tube brush is used or if it is small, a pipe cleaner.
A red or yellow test tube is typically used for an hCG test, as these tubes contain a gel separator to separate serum from the blood after centrifugation. This allows for better and cleaner sample collection for the test.
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A thin, long brush called a 'test-tube brush'.
A test tube holder, also known as test tube clamp or test tube rack, is used to hold a test tube in place when the tube is hot or should not be touched. It allows safe handling of test tubes during heating or when conducting chemical reactions.
Follow 1/2 inch tube from air cleaner on right side of car behind headlight bucket.
A test tube (or sample tube) has no errors.
A test tube can be held upright using a test tube rack, a test tube holder, or a clamp attached to a stand. These tools provide stability and prevent the test tube from tipping over during experiments.
It is not recommended to place a hot test tube directly into a test tube rack as this can cause damage to both the test tube and the rack. It is advised to allow the test tube to cool down before placing it in the rack to prevent any accidents or mishaps.
a hard glass test tube is a test tube made out of glass that is almost impossible to break.