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Proposal to continue Science ASSIST as a subscription service.

For users of this site who are as yet unaware of this situation, Science ASSIST is being forced to look at moving to a subscription-based service due to a lack of government funding.

To find out more about this proposed change and to fill in an Expression of Interest form for your school or institution to show that they are interested in becoming a subscriber, please check out the Science ASSIST 'About' page via the link below for more information.

Laboratory Notes: Preparing chemical solutions

There are a wide range of chemicals used in solution form for various experimental activities and demonstrations in the school science curriculum. These solutions are required in different strengths or concentrations based on intended activity.

These laboratory notes set out the main methods used for the calculation of and preparation of solutions.

Laboratory Notes: Phenolphthalein/NaOH agar cube experiment

Investigating the effect of cell size on diffusion (absorption) rate (speed) is a common investigation carried out by secondary students. It is modelled with a simple experiment using different-sized cubes of agar containing a pH indicator. 

These laboratory notes provide a method for producing Phenolphthalein - sodium hydroxide agar and directions for conducting the experiment. Safety considerations and waste disposal instructions are also included.

Laboratory Notes: Food Tests

Food testing is routinely carried out in senior biology classes. Students test a variety of food samples for carbohydrates, such as sugar and starch, lipids, proteins and vitamin C. These organic compounds react with specific chemical reagents to produce a visible and identifiable change.

These laboratory notes contain instructions for tests suitable for use in schools

SOP: Handling liquid nitrogen

Standard Operating Procedure (SOP) and detailed method on how to handle liquid nitrogen (LN2).

The SOP also contains instructions for performing a range of activities using liquid nitrogen.

The accompanying example risk assessment should be used as a guide only. Also users should consider risks and safety measures in their local environment before proceeding.

AIS: Microscope choices for schools

When choosing a microscope consideration needs to be given to the application, skill level of staff and students and budget. Microscopes range in quality and price and are used for different purposes.

This information sheet describes traditional compound, stereo and digital microscopes and includes suggestions for new photomicrography options and microscope alternatives.

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