Lab Tools

2D DRAWINGS OF LAB TOOLS

When you perform an investigation and then, afterwards, write down what happened; you may need to draw how the apparatus was arranged.

To save time in science, there are special ways to draw the apparatus. Can you predict what the diagrams will look like for the apparatus below?

Separating funnel

Delivery tube

Filter funnel

Clamp and stand

Round bottom flask

Flat bottom flask

Tripod & gauze

Bunsen burner

Conical flask

Test tube

Beaker

TEST TUBE

Used to hold, mix or heat

small quantities of

liquids or solids.

BEAKER

simple container for stirring, mixing and heating liquids commonly used in many laboratories.

Most also have a small spout (or "beak") to aid pouring. 

CONICAL FLASK

Used for mixing, heating, cooling, dissolving,

precipitation and boiling.

BUNSEN BURNER

• Apparatus for supplying heat • The gas used is methane which reacts with oxygen from air, forming carbon dioxide and water that escape as gases.

TRIPOD AND GAUZE

tripod

gauzeIs used as a platform to hold and support glassware, such as beakers and flasks while heating in experiments .

CLAMP AND STAND

stand

clampHolds test tubes,

Round bottom flasks for distillation experiments ,and other equipment

such as burettes; which

are most often used in titration experim

ents.

FUNNEL AND FILTER PAPER

Funnel

Filter paper

used for separating solids from liquids via filtering, Using filter

paper.

ROUND BOTTOM & FLAT BOTTOM FLASK

Used for heating liquids. The design of the flat-bottomed flask allows it to stand alone on the lab bench.

• Used for heating or boiling liquids.• Can’t stand alone on lab bench so should be used with clamp and stand.• More efficient heating than flat bottom flask.

SEPARATING FUNNEL

Used to separate liquids that don’t dissolve. Ex: oil and water

DELIVERY TUBE

• The delivery tube converts any liquid or gas flowing through a Rubber

tube into a free flow.

• A rubber tube can be connected to or from the top of the tube.

How to use a Bunsen burner?

LABELING A BUNSEN BURNER

Air Hole

Base

Chimney

CollarRubber tubing

HOW TO LIGHT A BUNSEN BURNEREvery time you use a Bunsen burner, you should follow these steps:1 Check the hose for breaks and holes. DO NOT use the Bunsen burner if you find any breaks or holes. Give it to your teacher.2 Connect the hose to the gas tap but do not turn it on yet.3 Check that the air-hole in the collar of the Bunsen burner is CLOSED.4 Light a match and hold it a little distance (about 2 cm) above the top of the chimney of the Bunsen burner.5 Turn on the gas at the gas tap.6 The Bunsen burner will now light and give you a yellow flame.7 Turn down the gas supply at the gas tap until you have the size of flame needed for your experiment.8 IF YOUR BUNSEN BURNER GOES OUT, TURN OFF THE GAS.

BUNSEN BURNER FLAMES

• Air hole open, so lots of air mixes with the gas

• Noisy, blue flame• Very hot flame• Used for heating things quickly

Roaring flame:

• Air hole half-open, so some air mixes with the gas

• Light blue flame, which is quieter than the roaring flame

• Flame is quite hot• Used for heating liquids,

especially if you are using a boiling tube

Medium flame:

• Air hole closed, so hardly any air mixes with the gas

• Quiet, bright yellow flame• Flame is not as hot as the

medium flame• Not used for heating, because

the flame leaves a layer of soot on things

Medium flame:

SAFETY SYMBOLS

This symbol means that a substance is self-reactive and can explode if not

handled correctly.

Explosive

Harmful or irritant

This symbol warns that a chemical may harm your health if you do not

use it properly. The word ‘irritant’ means that the chemical may give you a rash if you get it on you or make you choke if

you breathe it in.

Corrosive

This symbol tells you that a chemical will attack your skin if you get it on

you.

Highly Flammable

This symbol warns you that a chemical will catch fire easily.

Environmental danger

This symbol means that there is some type of living thing in an area which

may make you ill.

Toxic

This symbol means that a chemical is poisonous. Poisons can kill.

Biohazard

This symbol means that if used wrongly, it could cause harm to the

environment.

Eye protection must be worn

This symbol reminds you to wear safety glasses or goggles when

working in a certain area or using particular pieces of equipment or

chemicals.

Wash your hands

This symbol reminds you to wash your hands after you have done an

experiment.

Electric shock

Will cause electric shock if handled incorrectly.