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Work in the Laboratory Index

How to work in a Science Laboratory: Laboratory Rules
Laboratory Rules Quiz
How to use a Bunsen burner
The Measuring Cylinder
The pH Scale
Experiment to Test the pH of Different Solutions
The Cooling Curve of Water
Collecting Gases
The Preparation of Gases in the Laboratory

Work in the Laboratory Index

 

The Beaker

Beaker 2

 

Beakers come in different sizes. The maximum volume of liquid that can be held in a beaker is always written on its side.

 

The Test Tube

Test tubes are also used to hold liquids. Heat resistant test tubes can be heated.

Test tubes

When you draw test tubes you do not show the test tube rack. It is assumed that the test tubes are being supported by the rack.

.test tube drawing

 

The Crystallizing Dish

Crystalising dish

 

The Pestle and Mortar

Note that the mortar is the dish and the pestle is the baton used for grinding.

Pestle and mortar

 

 

WORK IN THE LABORATORY

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Scientific Apparatus

 

The Beaker

Beaker

Beaker drawing

 

Beakers are used to hold liquids. They cannot measure liquids accurately but they do have graduations which allow you to estimate the volume of liquid. Some beakers, those made of heat resistant glass such as Pyrex, can be heated.

 

The Conical Flask

Conical flask

Conical flask drawing

The conical flask has the same properties as a beaker but it has a different shape. Because its neck is narrow a delivery tube can be fitted into it.

 

Conical flask with delivery tube

This means that gases which evaporate when a liquid is heated can be 'directed' to another part of the apparatus.

 

The Filter Funnel

Filter funnel

Filter funnel drawing

 

The Evaporating Basin

Evapourating basin

Evapourating dish drawing

 

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