Search over 10,000 free study notes

The First Past the Post (FPTP) system is used for United Kingdom general elections. It consists of various elections in single member constituencies, the winner simply being the candidate who wins the mos...

Photosynthesis is the process by which plants make energy.  Plants use carbon dioxide from the atmosphere, water from the soil and light which acts as a "catalyst" to make usable energy in the f...

The key distinguishing feature between saturated and unsaturated fatty acids is the presence of a double bond. This double bond, present only in unsaturated fatty acids, will mean there are less hydrogen ...

Fractional distillation separates the different molecules in a crude oil mixture because of their differences in boiling points. 

A fractional distillation column is heated at the bottom and gets p...

Weathering is the breakdown and decay of rocks in-situ (where they originally lie) whereas erosion is the active removal (transportation) of weathered fragments.