9. This symbol means that a substance is
self-reactive and can explode if not
handled correctly.
Explosive Highly Flammable
This symbol warns you that a chemical
will catch fire easily.
10. Corrosive
This symbol tells you that a chemical
will attack your skin if you get it on
you.
Toxic
This symbol means that a chemical is
poisonous. Poisons can kill.
11. Radioactive
This symbol means emits radiation or
which causes health hazards.
Environmental danger
This symbol means that if used
wrongly, it could cause harm to the
environment.
12. Oxidising
Oxidising substances do not burn
themselves, but they provide oxygen for
flammable substances to burn.
Gas pressure
Pressurized gas, keep away from heat.
13. Health hazard
Substance is irritant or hazardous.
Irritant
Dilute solutions of acids and alkalis are
labelled with the 'irritant' symbol.
Anyone using an irritant substance should
take care to wash any spills off their skin
immediately..
15. 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.
In the next set of slides, you will know names of different apparatus, the use and 2D
drawing of each apparatus.
16.
17.
18. TEST TUBE
Used to hold, mix
or heat small
quantities of
liquids or solids.
19. 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.
21. 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.
22. TRIPOD AND GAUZE
tripod
gauze
Is used as a platform to hold
and support glassware, such
as beakers and flasks while
heating in experiments .
23. 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.
24. FUNNEL AND FILTER PAPER
Funnel
Filter paper
used for separating solids
from liquids via filtering,
Using filter paper.
25. 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.
27. 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.