What is a test tube used for?

Answer 1

Test tubes are widely used by chemists to hold, mix, or heat small quantities of solid or liquid chemicals, especially for qualitative experiments and assays. Their round bottom and straight sides minimize mass loss when pouring, make them easier to clean, and allow convenient monitoring of the contents. The long, narrow neck slows down the spreading of vapors and gases to the environment.

A test tube filled with water and upturned into a water-filled beaker is often used to capture gases, e.g. in electrolysis demonstrations.

Culture tubes are often used in Biology for handling and culturing all kinds of live organisms, such as molds, bacteria, seedlings, plant cuttings, etc.; and in medicine and forensics to store samples of blood or other fluids.

A test tube with a stopper is often used for temporary storage of chemical or biological samples.

Test tubes are usually held in special-purpose racks, clamps, or tongs. Some racks for culture tubes are designed to hold the tubes in a nearly horizontal position, so as to maximize the surface of the culture medium inside.

Test tubes are sometimes put to casual uses outside of lab environments, e.g. as flower vases or containers for spices.

Answer 2

Answer
It's used to put liqiud in when your testing something such as vinegar and baking soda or something that is any kind of liquid.
The use of the test tybe is to mix and heat snall quanties of solid or liquid chemicals.
Test tubes are used in science when examining any type of substance. A small amount of substance is put into the test tube and then you can start examining. It is also ideal for heating liquids.
Usually to contain chemicals for the purpose of a scientific test.

1. Used as a masturbatory aide for women and men for vaginal or anal penetration.

2. Shatter it in a carpeted area so that people can't see it, hopefully someone will be wearing only socks and cut themselves.

3. You can use it as a shot glass.

4. Fill it with blood and drink it.

5. Shove it down a 6 year old girl's throat and take her to the hospital to meet attractive nurses.
it is used to hold a small amount of solution for testing by mixing or heating with burnace... so that it wil not harm us.....

Answer 3

Test tubes are widely used by chemists to hold, mix, or heat small quantities of solid or liquid chemicals, especially for qualitative experiments and assays. Their round bottom and straight sides minimize mass loss when pouring, make them easier to clean, and allow convenient monitoring of the contents. The long, narrow neck slows down the spreading of vapors and gases to the environment.

A test tube filled with water and upturned into a water-filled beaker is often used to capture gases, e.g. in electrolysis demonstrations.

Culture tubes are often used in Biology for handling and culturing all kinds of live organisms, such as molds, bacteria, seedlings, plant cuttings, etc.; and in medicine and forensics to store samples of blood or other fluids.

A test tube with a stopper is often used for temporary storage of chemical or biological samples.

Test tubes are usually held in special-purpose racks, clamps, or tongs. Some racks for culture tubes are designed to hold the tubes in a nearly horizontal position, so as to maximize the surface of the culture medium inside.

Test tubes are sometimes put to casual uses outside of lab environments, e.g. as flower vases or containers for spices.