0
Brainiac's Test Tube Baby ended on 2007-01-08.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
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.
Why insert the dropper into the test tube when adding some drops of chemicals?
Placing the end of the dropper into the end of the tube avoids the possibility of dripping chemicals on your fingers.
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.
How would you show that water is not a good conductor of heat?
A test tube is filled with tap water (about 25oC). An ice block is placed in the test tube and is kept at the bottom of the test tube by means of a wire gauze. Next (without delaying too much since the ice block would melt completely!), the test tube is bent and the upper end of the test tube placed in a Bunsen flame. It is found that the water at the upper end boils before the ice block melts. This shows that water is a poor conductor of heat.
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.
What does a test-tube in science look like?
A test tube, as used by scientists, is just a glass cylinder, open at one end, about 6 inches long and half an inch in diameter.
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 are the purposes of test tubes?
A test tube is a glass or plastic tube that is rounded on one end and open on the other. Test tubes are traditionally used in experiments done in labratories and would normally contain a chemical or solution.
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.
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.
