Lab Equipment and Safety Symbols

Vocabulary flashcards covering laboratory safety symbols and common lab equipment from the lecture notes.

Disposal Alert: Symbol indicating that materials require specific, proper disposal procedures.

Animal Safety

Symbol shown when live animals are used and must be treated ethically and safely.

Biological Hazard

Symbol indicating dangerous biological substances such as bacteria, viruses, or fungi.

Radioactive Safety

Symbol shown when radioactive materials are present and special precautions are necessary.

Open Flame Alert

Symbol indicating that open flames are in use and fire precautions are required.

Clothing Protection Safety

Symbol indicating that aprons or protective clothing should be worn to prevent staining, burning, or damaging garments.

Thermal Safety

Symbol shown when hot objects are present and must be handled with care.

Fire Safety

Symbol reminding users to exercise caution around open flames or fire‐prone situations.

Sharp Object Safety

Symbol indicating the presence of sharp instruments that could cause cuts or punctures.

Explosion Safety

Symbol warning that improper use of materials could cause an explosion; exercise caution.

Fume Safety

Symbol indicating that materials may release harmful fumes; ventilation or fume hood required.

Eye Safety

Symbol indicating that goggles or other eye protection must be worn to protect eyes.

Electrical Safety

Symbol shown when electrical equipment is in use and shock or short hazards exist.

Poison Safety

Symbol indicating the presence of poisonous substances that require careful handling.

Plant Safety

Symbol reminding users to handle potentially harmful or allergenic plants with caution.

Chemical Safety

Symbol indicating that chemicals in use can burn, irritate, or poison the skin.

Goggles

Protective eyewear designed to shield eyes from chemicals, glass shards, or debris.

Beaker

Cylindrical glass container used for holding, mixing, and heating liquids.

Wash Bottle

Squeezable plastic bottle used to rinse laboratory glassware with distilled water.

Erlenmeyer Flask

Conical flask with a narrow neck, ideal for swirling, heating, and storing solutions.

Graduated Cylinder

Tall, narrow cylinder marked with graduations for precise volume measurements.

Burette

Graduated glass tube with a stopcock, used to dispense measured liquid volumes in titrations.

Test Tube

Small cylindrical glass tube used for holding, heating, or mixing small samples.

Test Tube Rack

Stand designed to hold multiple test tubes upright and organized.

Test Tube Holder

Clamp or wooden tool used to safely hold a hot test tube.

Thermometer

Instrument used to measure temperature of liquids, gases, or solids.

Funnel

Cone-shaped tool for transferring liquids or powders; can also hold filter paper.

Watch Glass

Concave glass dish used to hold small samples, evaporate liquids, or cover beakers.

Mortar and Pestle

Bowl (mortar) and club (pestle) used to grind, crush, or mix solid substances.

Scale / Balance

Instrument used to measure the mass of substances accurately.

Hot Plate

Flat, electrically heated surface used for warming or boiling samples.

Bunsen Burner

Adjustable gas burner providing a flame for heating, sterilization, or combustion.

Ring Stand

Metal stand with a heavy base used to support clamps and other apparatus during experiments.

Ring Clamp

Circular metal clamp that attaches to a ring stand to hold glassware in place.

Wire Gauze

Metal mesh placed on a ring clamp to support glassware and distribute heat evenly.

Clay Triangle

Triangular frame of clay-covered wires used to support a crucible over a flame.

Spatula

Flat metal tool used to transfer or scrape small quantities of solid chemicals.

Tongs

Metal gripping tool for holding and moving hot glassware or crucibles.

Pipe Cleaner

Flexible wire brush used to clean narrow glassware or tubing.

Tweezers

Small pincers used to grasp and manipulate small objects or specimens.

Dropper / Pipet

Small tube with a bulb used to dispense or transfer small amounts of liquid.

Evaporating Dish

Shallow ceramic dish used to evaporate solvents and concentrate solutions.

Crucible

Small ceramic container designed to withstand high temperatures for heating substances.