Practical: Data loggers & Computer Modelling Data loggers Dataloggers are a tool that allows for the quick and efficient gathering of data This technology can be used for simple data collection...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.2.3 Nitrogen Oxides & Sulfur Dioxide Formation of Nitrogen Oxides Nitrogen Oxides These compounds (NO and NO2) are formed when nitroge...
Practical: Investigating Biodiversity Using Sampling Use of sampling techniques in fieldwork Sampling is a method of investigating the abundance and distribution of species and populations There ar...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.2.1 Crude Oil & Fractional Distillation Crude Oil & Fractional Distillation Crude oil as a mixture is not a very useful substance ...
Drawing Cells From Blood Smears To record the observations seen under the microscope (or from photomicrographs taken) a labelled biological drawing is often made Biological drawings are line pictur...
Practical: Dissection of Gas Exchange Surfaces in Fish & Insects The safe use of instruments for the dissection of an animal or plant organ Dissections are a vital part of scientific research T...
Practical: Aseptic Techniques When investigating the effect of antimicrobial substances on microbial growth it is essential that aseptic (sterile) techniques are used Aseptic techniques ensure the ...
Practical: Ethical Use of Organisms The safe and ethical use of organisms to measure plant or animal responses or physiological functions When using live animals in biological experiments, care mus...
Drawing Conclusions Evaluating experimental results and drawing conclusions from them are two very important skills Evaluation of results is a different skill from evaluation of the experimental pr...
