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Brainiac's Test Tube Baby ended on 2007-01-08.

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Tube of transparent glass that is closed at one end?

Test tube


What type of simple machine is a test tube holder?

A test tube holder is considered a lever simple machine. It allows the user to grasp and hold a test tube securely with minimal effort by applying a force at one end to lift or manipulate the test tube at the other end.


What is a tube brush?

A test tube brush is a brush that cleans up your test tube when it is wet or messy.A test tube brush is used to easily clean the inside of a test tube.A test tube brush is a couple of wires spun together with bristles on one end in the shape of a test tube. They come in all different sizes and materials for all different size test tubes and uses.


What is a test tube brush?

According to the American Heritage Dictionary of the English Language, a test tube is a "clear, cylindrical glass tube usually open at one end and rounded at the other, used in laboratory experimentation."A test tube can be used to store chemicals that are dangerous to skin,or be connected to other lab equipment for experiments. In this case, it is usually to collect a useful product.


Define a test tube?

A test tube is a container made of clear glass which consists of a long tube with a rounded bottom. It is very useful for scentific experiments because you do not need a large sample, the narrow shape makes it easy to see what is happening in the tube, the rounded end distributes heat if the end is heated with a small sample in it, and the upper end can be easily stoppered. The rounded end also makes it easy to clean.


How do you measure exactly 60g of salt in a test tube?

First we measure the test tube on the weight machine and note it . let the wieght be 'a' grams. After that keep putting the salt in the tube until the weight of the test tube ,with salt in it, is = (a + 60) grams . If u accomplish this that means that the salt in the tube is exactly of 60 grams :) .


What is test tube and how it is used?

According to the American Heritage Dictionary of the English Language, a test tube is a "clear, cylindrical glass tube usually open at one end and rounded at the other, used in laboratory experimentation."A test tube can be used to store chemicals that are dangerous to skin,or be connected to other lab equipment for experiments. In this case, it is usually to collect a useful product.


What happens when a piece of Mg ribbon is place in a test tube with Hydrochloric acid and cover the mouth of the test tube?

Metal + Acid --> Salt + Hydrogen Gas. As a result, the end product of this reaction is magnesium chloride and hydrogen gas. Covering the mouth of the test tube simply prevents the hydrogen gas from escaping, and allows you to test for its presence by using a lighted splint.


Is the head end of a tube the closed end?

The head end of a tube can be the closed end. This depends on what the tube's purpose in the car is.


What does a test-tube in science look like?

A test tube is a cylindrical, transparent glass tube with a rounded bottom and open top. It is used for holding and mixing liquids in scientific experiments. Test tubes can vary in size and may have markings or graduations on the side for measuring liquid volumes.


Why should you always point the end of test tube away from yourself when heating it?

You should always point the end of a test tube away from yourself when heating it to prevent any potential splattering or spattering of the contents towards you. This is a safety precaution to minimize the risk of burns or injury from hot liquids or materials.


If a tube of hydrogen gas is placed above a test tube of air why would the tube of air give a positive test for hydrogen after a few seconds?

the hydrogen would likely begin bonding with the oxygen in the test tube, and become heavier. As this product falls out, it would pull more hydrogen to the end of the tube, putting more hydrogen in contact with the oxygen, much the same way as an oil lamp pulls the oil fumes from the base of the lamp to the flame.