Diagrams of common lab instruments
1. Microscope: A microscope is used to magnify small objects or organisms for observation. It consists of a base, arm, stage, objective lenses, eyepiece, and a light source.
2. Bunsen burner: A Bunsen burner is a gas burner used for heating in the laboratory. It consists of a base, gas inlet, collar, air hole, tube, and flame adjuster.
3. Beaker: A beaker is a cylindrical container used for measuring, mixing, and heating liquids. It has a spout for pouring and a flat bottom for stability.
4. Test tube: A test tube is a cylindrical tube used for holding small amounts of liquid or solid samples. It has a rounded bottom and can be capped with a stopper or lid.
5. Pipette: A pipette is a narrow, tube-shaped instrument used for transferring precise volumes of liquid. It has a bulb or adjustable plunger for suction and release.
6. Petri dish: A Petri dish is a shallow, circular dish with a lid used for culturing bacteria or other microorganisms. It is made of glass or plastic and can be stacked for storage.
7. Graduated cylinder: A graduated cylinder is a tall, narrow container used for measuring liquid volume. It has a spout for pouring and graduations marked along the side for accurate measurement.
8. Thermometer: A thermometer is used to measure the temperature of a substance or environment. It consists of a glass tube with a bulb at one end filled with a temperature-sensitive liquid.
9. Balance: A balance is used to measure the mass of an object or substance. It has a pan for placing the sample, a beam with a fulcrum, and weights or a digital display for measuring mass.
10. pH meter: A pH meter is used to measure the acidity or alkalinity of a solution. It consists of a probe with a sensitive glass membrane and a digital display for reading pH values.