Lab equipment

Bunsen burner

Used to heat substances

Pipestem triangle

Supports a crucible while heating

Evaporating dish

Used to evaporate liquids

Test tubes

Hold small amounts of substances for reactions or heating

Beaker

Used for mixing

Gas bottle

Stores gases or chemicals

Ring stand

Supports clamps and rings during experiments

Utility clamp

Holds glassware on a ring stand

Iron ring

Supports wire gauze or funnels on a ring stand

Mortar and pestle

Crushes and grinds solids

Crucible and cover

Heats small amounts of solids to very high temperatures

Watch glass

Holds samples or covers beakers

Erlenmeyer flask

Used for mixing and heating liquids

Wire gauze

Supports glassware while heating

Safety goggles

Protect eyes from chemicals and heat

Corks

Seal test tubes or flasks

Assorted rubber stoppers

Seal containers and allow tubing connections

Tongs

Handle hot equipment

Test tube holder

Holds a test tube while heating

Lab burner

Provides a flame for heating

Buret

Measures and dispenses precise liquid volumes in titrations

Pipet

Transfers measured amounts of liquid

Thermometer

Measures temperature

Graduated cylinder

Measures liquid volume accurately

Wash bottle

Rinses equipment with distilled water

Micropipets (standard and narrow stem)

Transfer very small amounts of liquid

Dropper

Adds liquid drop by drop

Forceps

Pick up small objects

File

Smooths rough edges of glass or metal

Wire brush

Cleans test tubes and glassware

24-well plate

Holds small samples for reactions

Spatula

Transfers small amounts of solids

Scoopula

Scoops and transfers chemicals

Funnel

Transfers liquids or supports filtration

Test-tube rack

Holds and organizes test tubes

Bunsen burner precaution

Keep flammable materials away and never touch the hot metal parts. Can cause burns or fires if left unattended.

Pipestem triangle precaution

Make sure it is stable before heating. The crucible may fall if not balanced properly.

Evaporating dish precaution

Do not heat too quickly because it can crack. Hot dishes can cause burns.

Test tubes precaution

Never point a heated test tube at anyone. Glass can crack or chemicals may splatter.

Beaker precaution

Do not overheat or overfill. Glass may break or liquids may spill.

Gas bottle precaution

Handle carefully to avoid leaks or breakage. Gases may be dangerous if inhaled.

Ring stand precaution

Ensure it is stable and balanced. Equipment can tip over during experiments.

Utility clamp precaution

Tighten gently to avoid breaking glassware. Loose clamps may drop equipment.

Iron ring precaution

Check that it is securely attached. Unstable setups may collapse when heated.

Mortar and pestle precaution

Do not grind too forcefully. Chemicals or fragments may fly out.

Crucible and cover precaution

Use tongs because it becomes extremely hot. Sudden cooling may crack it.

Watch glass precaution

Handle carefully because it breaks easily. Hot glass can burn skin.

Erlenmeyer flask precaution

Do not stopper tightly while heating. Pressure buildup may cause explosion.

Wire gauze precaution

Allow it to cool before touching. Metal stays hot after heating.

Safety goggles precaution

Wear them properly at all times. Without them chemicals may injure eyes.

Corks precaution

Do not force corks into glassware. Glass may crack or shatter.

Assorted rubber stoppers precaution

Use the correct size and avoid forcing them. Pressure may build up in closed containers.

Tongs precaution

Grip equipment firmly to avoid dropping hot items. Poor grip may cause spills or burns.

Test tube holder precaution

Hold test tubes securely and away from people while heating. Hot chemicals may splash.

Lab burner precaution

Tie back hair and keep papers away. Open flames can start fires.

Buret precaution

Read measurements carefully and clamp securely. Spills or inaccurate titration results may occur.

Pipet precaution

Never pipet by mouth. Chemicals may be swallowed or inhaled.

Thermometer precaution

Handle gently because glass thermometers break easily. Mercury or alcohol may spill.

Graduated cylinder precaution

Place on a flat surface to prevent tipping. Glass may break if dropped.

Wash bottle precaution

Only fill with the correct liquid. Contamination may ruin experiments.

Micropipets (standard and narrow stem) precaution

Avoid using excessive force. Inaccurate measurements or breakage may occur.

Dropper precaution

Do not mix chemicals in the same dropper. Contamination can cause unwanted reactions.

Forceps precaution

Use carefully with sharp or hot objects. May slip and cause injury.

File precaution

File away from your body. Sharp edges or fragments may cause cuts.

Wire brush precaution

Use gently to avoid scratching or breaking glassware. Bristles may poke skin.

24-well plate precaution

Avoid mixing chemicals accidentally between wells. Contamination may affect results.

Spatula precaution

Use a clean spatula for each chemical. Contamination can change reactions.

Scoopula precaution

Do not use with wet chemicals unless intended. Chemicals may stick or contaminate.

Funnel precaution

Hold securely while pouring liquids. Spills may occur if it tips over.

Test-tube rack precaution

Place it on a stable surface. Test tubes may fall and break if knocked ove