GENERAL SCIENCE SECONDARY 1

ALL IN JUST A Few

SCIENCEAPPARATUS FUNCTIONS

TEST TUBE Contains small amounts of chemicals for heating

FILTER FUNNEL Transferring liquid into containers with a small opening / separating solids from liquids with a filter paper

BEAKER Liquid holding for filtration

CONICAL FLASK For containing and mixing chemicals and liquids to produce gas when heating is NOT required

FLAT-BOTTOMED FLASK

For mixing and heating chemicals to produce gas when heating IS required

RETORT STAND To support apparatus during experiments

TRIPOD STAND To support apparatus during heating

Evaporating dish

To evaporate the liquid in a solution over a Bunsen burner

Measuring cylinder

To measure volumes of objects

Bunsen Burner Source of heat/ to raise a flame above the table , high enough for heating

Bell jar To separate the set-up of an experiment from the surrounding

EXPLOSIVE

IRRITABLE

RADIOACTIVE

FLAMMABLETOXIC

BIOHAZARDOUS

CORROSIVE

Vernier caliper = used to measure Internal and external diameters of cylinder or spherical objects. = have tails that are used to measure depth of narrow tubes = accurate to 0.01 cm

Indicators help you find out whether a solution is acidic or not.

ACIDS

ALKALIS

SOUR BITTER

CORROSIVE CORROSIVE

TURNS BLUE LITMUS PAPER RED

TURNS RED LITMUS PAPER BLUE

NOT SLIPPERY SLIPPERY (SOAPY FEEL )

Lemon juice contains citric acid, and vinegar contains ethanoic acid.

Some strong acids are hydrochloric acid, sulphuric acid and nitric acid.

Some weak acids are ethanoic acid, citric acid and carbonic acid.

Nitrogen 78%

Oxygen 21%

Carbon dioxide 0.03%

Water Vapour 1%

DISPLACEMENT