Lab tools + 2D drawings and safety symbols

1. Lab
Tools

2. 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

3. TEST TUBE
Used to hold, mix
or heat small
quantities of
liquids or solids.

4. 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.

5. CONICAL FLASK
Used for mixing, heating,
cooling, dissolving,
precipitation and boiling.

6. 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.

7. TRIPOD AND GAUZE
tripod
gauze
Is used as a platform to hold
and support glassware, such
as beakers and flasks while
heating in experiments .

8. CLAMP AND STAND
stand
clamp
Holds test tubes,
Round bottom flasks
for distillation
experiments ,and
other equipment such
as burettes; which are
most often used
in titration experiments
.

9. FUNNEL AND FILTER PAPER
Funnel
Filter paper
used for separating solids
from liquids via filtering,
Using filter paper.

10. 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.

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

12. 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.

13. How to use a Bunsen burner?

14. LABELING A BUNSEN BURNER
Air Hole
Base
Chimney
CollarRubber
tubing

15. HOW TO LIGHT A BUNSEN BURNER
Every 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.

16. 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:

17. • 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:

18. • 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:

19. SAFETY SYMBOLS
This symbol means that a substance
is self-reactive and can explode if not
handled correctly.
Explosive

20. 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

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

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

23. Environmental
danger
This symbol means that there is some type
of living thing in an area which may make
you ill.

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

25. Biohazard
This symbol means that if used wrongly, it
could cause harm to the environment.

26. 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.

27. Wash your hands
This symbol reminds you to wash your
hands after you have done an experiment.

28. Electric shock
Will cause electric shock if handled
incorrectly.