Science Lab Equipment Identificatio

n Lab

•A Florence flask •round or flat-bottom flask with a long neck.•designed for uniform heating

range in size from a few centimeters to over 20 centimeters in length and from a few millimeters to several centimeters in diameter.

designed to allow easy heating of samples, to be held in a flame, and often are made of expansion-resistant glasses, such as Pyrex.

Tests tubes are often preferred above beakers when multiple small chemical or biological samples have to be handled and/or stored.

device to channel liquid or fine-grained substances into containers with a small opening.

Funnels are usually made of either stainless sheet metal or plastic, but sometimes paper funnels are used in cases where it would be difficult to adequately clean the funnel afterwards (for example, in adding motor oil to a car).

inverted conical base with a cylindrical neck.

The main advantages in an Erlenmeyer flask are that it is less likely to tip over than a Florence flask and the smaller neck slows evaporative loss better than a beaker.

It can also be swirled without fear of the contents spilling.

may be stoppered using rubber bungs, so as the contents of the flask may be mixed or transported safely.

The flask is not usually used when heating substances vigorously

cylindrical cup with a notch on the top to allow for the pouring of liquids.

They are about as wide as they are tall. This makes beakers very stable and easy to handle.

Some beakers have graduated markings, or calibrations, to allow an easy rough measure of liquid volume.

As a means to make solutions, they are probably the most used piece of laboratory glassware.

Like a test tube or a boiling tube, a beaker can be placed over a burning flame (such as a Bunsen burner) to be heated.

A microscope (Greek: micron = small and scopos = aim) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye.

used for measuring the volumes of liquids in a quantitative manner.

The volumes of liquids graduated cylinders can handle range from a few milliliters to many liters.

Use to hold a beaker or flask when heating something.

Clamp will hold testube

Triangle will hold a cruicible

A balance (also balance scale, beam balance or laboratory balance)

accurately measure the mass of an object.

Used to clean the insides of test tubes.

small electric stove often used in a laboratory setting to heat glassware.

Used to hold test tubes, especially when heated or containing harmful chemicals.

A Petri dish is a shallow glass or plastic cylindrical dish that biologists use to culture microbes.

Empty Petri dishes may be used to observe plant germination, or small animal behavior.

Tongs are gripping and lifting tools, of which there are many forms adapted to their specific use.

A stopper is a truncated conical piece of rubber or cork used to close off a glass tube, piece of laboratory glassware

A microscope slide is a thin sheet of glass used to hold objects for examination under a microscope.

A standard microscope slide (shown on the right) is 75 x 25 mm (3" X 1") and 1.2 mm thick.

This smaller sheet of glass is called a cover slip or cover glass, and typically measures between 18 and 25 mm on a side.

The cover glass serves two purposes: ◦ it protects the microscope's

objective lens from contacting the specimen, and

◦ it creates an even thickness (in wet mounts) for viewing.

A scalpel is a very sharp knife used for surgery as well as various arts and crafts.

Used to store and hold test tubes in an upright position.

A mortar and pestle are two tools used with each other to grind and mix substances.

The mortar is a bowl-like vessel used to contain a substance.

The pestle is a stick used for pounding and grinding.

Mortar and pestles were traditionally used in pharmacies to crush various ingredients prior to preparing an extemporaneous prescription.

Goggles or safety glasses are a form of protective eyewear that usually enclose the eye area to prevent particulates or chemicals from striking the eyes.

They are used in chemistry laboratories and in woodworking

Used to mix or dispense small amounts of liquid, a drop at a time.

A thermometer is a device used to measure temperatures or temperature changes.

A Bunsen burner is a device used in scientific laboratories for heating, sterilization, and many other uses.

The device safely burns a continuous stream of gas without the risk that the flame will travel back down the tube to the gas supply

Forceps are a hand-held instrument for grasping and holding objects, similar in concept to tongs, tweezers or pincers. They have a locking mechanism to ensure they do not squeeze too tightly onto the object they are used upon.

An inoculation loop (sometimes called smear loop) is a simple tool used mainly by microbiologists to retrieve an inoculum from a culture of microorganisms.

The inoculation loop is always sterilized in a flame until it becomes red hot before and after each use. By doing this, the same tool can be reused in different experiments without fear of cross-contamination.

Probe is a generic term used to refer to a device used to gather information.

Used to hold objects in place during dissection.

Used to heat solid substances to high temperatures.