Two diagrams explaining human circulation, one the large circulation, the other the small circulation.

This is a presentation on addition polymers. It contains the basics for understanding addition polymerisation along with much more extra information to further your knowledge

Hormones and some of their key characteristics/ local of production. Include: -Oxytocin ADH GH Endomorphines Prolactine Trophic hormones ( LH, FSH, ACTH, TSH) Melatonin PTH Calcitonin T4 and T3 Glucagon, insulin and somatostatin Adrenaline and noradrenaline Cortisol, cortisone, aldosterone and androgens -thymosin

Summary of membranes. here you will find the main roles of membranes and details about their composition.

Summary of the tests for all organic groups you’ll come across during your A-level (OCR). Includes: Test for alkenes Test for primary and secondary alcohols Test for the carbonyl (C=O) group Tests for telling apart aldehydes and ketones Test for the carboxyl group (COOH) Test for phenol Tests for haloalkanes

Summary of some of the key features of all biological groups covered at A-levels. Includes: water Mineral ions carbohydrates lipids proteins (with enzymes and inhibitors included)

I gathered 8 Maths questions I thought were interesting from different University entrance exams in Brazil. I translated them into English so more people could have a go at them. It’s meant to be done without a calculator. A-level knowledge is enough for doing them. Answers and explanations included. enjoy!

This is summary of all reactions you will come across during the AS and A level. The summary is made up of three sections: AS reactions, A level reactions (aliphatic) and A level reactions (aromatic) Here you will find how each group reacts, conditions for reactions, reaction mechanisms, side notes and more.

A research on graphene describing its structure and potential uses in future technology. It comes with a Powerpoint presentation and links to all resources I used to summarise my findings such as newspaper articles, university websites and Youtube videos.

Diagram illustrating haloalkane synthesis from alcohols

Worksheet containing: 20 quadratic equations to be solved 14 triangle exercises Answers/explanations at the back.

**- 41 pages worth of Maths AS level questions. - Markscheme attached I have selected some of the questions I found more interesting during my preparation for the Maths AS level. Numeration of the questions is not in the correct order, but the first question on the questions file corresponds to the first marking guidance on the markscheme file and so on Enjoy!

I gathered 11 Chemistry questions I thought were interesting from different university entrance exams in Brazil. I translated them into English so more people could have a go at them A-level knowledge is enough for doing them. Answers and explanations at the back. enjoy!

Maths exercises for GCSE/A level students covering: Circles Straight lines Areas Volumes Perimeter Graphs Quadratics Discriminants Answers at the back. They get harder as you get to the end.

sheet summarizing some of the key aspects of the biological molecules topic

brief summary on pressure in blood vessels.