You must include all the external sources of information you have used in compiling your report. Each source should be described in sufficient detail to allow the reader to locate and read the source themselves. One standard way for example of quoting a section in a book would be to in this format.
Author(s), Book Title and Edition (year of publication),Publisher, page numbers
Stryer L, et al, Biochemistry 5th ed (2002) , & Co Ltd, p102-105
Or for a magazine or paper in a scientific journal.
Author(s)(year),Title,Publication and volume, page numbers.
Watson . and Crick .(1953) A Structure for Deoxyribose Nucleic Acid Nature 171, 737-738
If there are more than two authors for a source name the main or first author and use the Latin "et al" which means "and others".
For website sources you should quote the full website address.
We hope you have found this guide on how to write a science practical useful and wish you the very best with your grades.
A Level students often apply to universities before they have taken their final exams, with applications administered centrally through UCAS . British universities (including Scottish universities, which receive many applicants taking A Levels) consider GCSEs, AS-level results, predicted A Level results, and extracurricular accomplishments when deciding whether applicants should be made an offer through UCAS. These offers may be 'unconditional', guaranteeing a place regardless of performance in A2 examinations. Far more often, the offers are conditional on A level grades, and become void should the student fail to achieve the marks expected by the university (for example, conditional offer of three A Levels at grades B-B-C).  Universities may specify which subjects they wish these grades to be in (for example, conditional offer of grades A-A-B with a grade A in Mathematics).  The offer may include additional requirements, such as attaining a particular grade in the Sixth Term Examination Paper . The university is obliged to accept the candidate if the conditions are met, but is not obliged to reject a candidate who misses the requirements. Leniency may in particular be shown if the candidate narrowly misses grades.