Alkali - a compound release hydroxide ions (OH⁻ (aq)) when dissolved in water.

Beaker - a commonly used container for stirring, mixing and heating liquids

Bunsen burner - the main heating source in the laboratory

Carcinogenic - substances that may cause cancer

Corrosive - substances that may damage living tissue upon contact

Crucible - a cup-shaped piece of apparatus used to hold chemicals for heating to very high temperatures

Dropper - a piece of apparatus used to add liquids drop by drop

Evaporating dish - a porcelain item used to heat and evaporate liquids

Explosive - substances that may explode if ignited in the air or exposed to heat

Filter funnel - a piece of apparatus used in filtration and for adding liquids

Fireproof mat - a piece of apparatus used to be placed under a Bunsen burner to prevent objects from catching fire

Flammable - substances that may catch fire easily under normal conditions

Harmful - substances that may involve limited health risk if swallowed, breathed in or absorbed through skin

Hazard warning label - labels that put on containers storing dangerous chemicals

Irritant - substances that may cause reddening or blistering of the skin

Measuring cylinder - also called graduated cylinder; used to measure liquid volumes roughly

Mortar and pestle - a set of apparatus used to grind a solid into a fine powder

Oxidizing - substances that may produce a lot of heat when reacting with flammable or easily oxidizable substances

Pipe-clay triangle - a piece of apparatus used to support a crucible or evaporating dish during heating

Reagent bottle - a container used to store liquid chemicals

Safety glasses - a piece of eyewear protecting the eye area in order to prevent chemicals from striking the eyes

Spatula - a piece of apparatus used to transfer solid chemicals, especially powders

Test tube - a piece of glassware with a rounded U-shaped bottom to hold chemicals for testing

Tongs - a tool used for gripping and lifting substances

Toxic - substances that may cause serious risk to health and even death if swallowed, breathed in or absorbed through skin

Tripod - a piece of apparatus used to be placed over a Bunsen burner for supporting substances to be heated

Weighing bottle - a small container used to hold chemicals for weighing

Wire gauze - a piece of apparatus used to support a container during heating