tavmar kachiney nephew
Matilda Equiluz
Biology Laboratory in a high school is where we learn about different biological aspects of nature. We explore cells & tissues of plants and animals through a compound microscope, learn about the bones and body structure through Human Skelton, visualize important organs like the heart through biological models & learn different organ systems through educational charts. Further, we also explore various species through preserved specimens kept in Glass jars.
1. Safety apparatus: The foremost and most important thing to keep in mind is definitely the safety of the students and other people handling experiments in a lab. The safety apparatus consists of safety goggles, lab apron, and latex gloves. Shoes are a must and any kind of sandals or slippers should not be worn in the labs.
The safety goggles protect us from eye irritation that may arise from any chemical or fumes present there. In case of any accidental splashing of chemicals or acids, it also protects us from the blindness of the eyes.
A microscope is a very basic and needful equipment of any lab. A simple light microscope (compound microscope) is the one, which is mostly seen in schools and colleges and it uses light and a series of magnifying lenses to observe a tiny specimen.
3. Test tubes and test tube racks: Test tubes are usually cylindrical pipes made up of glass, with a circular opening on one side and a rounded bottom on the other. They come in different sizes but the most common standard size is 18*150 mm.
Test tubes are one of the most important apparatus as they are functional from storing to mixing reagents in any chemical or biological reactions. They become very handy when a large number of samples need to be tested for qualitative assessment of any test.
4. Dissecting tool kit: In school levels, for attending biology practical, students are instructed to bring their own dissecting tool kit which usually contains of a scalpel, pins, probes, scissors, a glass slide, a dissecting knife, coverslips, etc.
5. Hot plate: This equipment is used to heat materials in the lab, mostly glasswares and their contents. Some come up with magnetic stirrer, allowing the heated liquid to get stirred automatically. This stirring reduces the temperature of the glassware and it also slows down the rate of heat exchange thus encouraging even heating of the content.
9. Conical flasks: Conical flask, also known as Erlenmeyer flask, is an apparatus having a flat bottom and a long narrow neck, which allows easy mixing of the solution without spilling out the content. Since the flask has a narrow long neck, it is also used to gently heat the content inside with a gentle swirling motion of the flask. The flask can also be covered using a rubber cap or cork.
11. Funnels: Funnels are necessary equipment to pour substances and solutions in narrow-mouthed test tubes and conical flasks. There is a variety of its available, most common ones are filter, thistle, and dropping funnels.
12. Graduated cylinders: These are some cylindrical apparatus with several markings up and down the length of the container with the primary function dealing with proper measurement of a specific volume of liquid with precision. While taking readings, one needs to be careful to take into consideration the reading with respect to the meniscus of the liquid.
The dropper, also known as Pasteur pipette, is usually made up of plastic or glass cylinder, having a small nozzle on one side and a rubber holder on the other. It is used to put the liquids or solutions in any medium dropwise, that is, one drop at a time, a necessary equipment when any reagent is required in a precise amount in a solution.
Pipettes are of varying sizes, designed for titration experiments wherein chemicals are mixed in specific volume. These are narrow glass cylindrical pipes, used for measuring an exact volume of liquid and placing it into another container.
14. Dissecting pan: One of the most discussed biology practicals in higher classes is regarding the dissection experiment performed on cockroaches or frogs. This equipment is used as a pan on which the specimen is kept while it is being dissected to study its internal organs.
15. Glass slides and coverslips: Varieties of glass slides are available which are used for observation purposes of very small specimens. The microscope slides are used to support an item being examined under the microscope.
17. Spatulas and scopulas: These laboratory spatulas are very much similar to the kitchen like spatulas found in our home but they are just very smaller in size in comparison. The spatulas are usually resistant to heat and acids, hence making them suitable for large range use in the laboratory experiments.
18. Thermometer: Every lab is equipped with a basic thermometer as many a time, certain chemical or biological reaction can be carried out in any particular temperature range only and so to proceed, the thermometer becomes very necessary to measure the temperature of the required solution before moving forward with further reaction procedure.
These two cannot be called apparatus in a proper way, but they serve as one of the most important and basic things that will be required in any kind of laboratories. The litmus paper serves to identify the pH of any solution by changing colors whereas, the filter paper helps in the filtration process.
These are the basic apparatus that one can witness in any school or college biology labs. Other than these, one will also get to see wash bottles, stirring rods, stopwatch, weighing balance or brushes to clean test tubes. As these apparatuses serve the basic, every student must get familiar with all this equipment and their working to have safe and sound practical experiment experiences in High school biology laboratories.
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Scales. Determination of weight is fundamental to the calculation of mass, molarity, molality, and concentration used in a multitude of basic biology experiments. Students need to learn how to use scales to make solutions from the reagents that their school supplies. But sometimes even a very affordable laboratory scale is adequate. If your budget is limited, you may prefer portable laboratory balances.
Test tubes. No biology lab can function without test tubes. The size biology labs most commonly use is 18 x 150 mm. Test tubes are indispensable for mixing reagents, holding samples, and observing chemical and biological reactions.
Volumetric flasks. Volumetric flasks are easy to recognize by the large, bulbous body on the bottom, and the long, narrow neck, easily closed with a stopper. Some volumetric flasks are graduated, so students can measure how much liquid is in the flask. Volumetric flasks are also useful for storing liquids and for incubating biological materials.
Incubators. Up-to-date curricula for modern biology include experiments that require maintaining live organisms at a steady temperature. Incubators provide an enclosed space kept at a constant temperature warmer or cooler than room air around the incubator.
Electrophoresis equipment. Electrophoresis gives students a kinesthetic experience that helps them understand basic concepts of molecular biology. Electrophoresis chambers from Modern Biology can accommodate one or two up to six lab teams running up 16 samples and controls each at the same time. Modern Biology also offers a vertical electrophoresis unit that runs two or more precast polyacrylamide gels.
Centrifuges. Centrifuges are essential tools of cell fractionation. They are necessary whenever young scientists need to separate particles of different sizes from a solution. Modern Biology offers centrifuges that accommodate multiple samples at a range of speeds.
Once you get the basics for your laboratory, Modern Biology supplies the rest. Our prepackaged experiments provide experimental materials, controls, and reagents boxed together at an affordable price.
Each experiment is designed to give your students a chance to formulate a hypothesis and test it in the lab, record their notes, and write a summary. All of our reagents and equipment are non-toxic and meet all state codes for student safety.
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