Rakaradakov

This document gives examples of the foods you need to eat to be nutritious. It also gives the types of digestion which are very popular questions among the biology topic of the human "systems".

This document provides multiple practice multiple choice questions for chemistry. Many of these questions have appeared on exams or classwork and it is very useful to know them.

This document shows the steps of diffusion and how it works, wether is is a physical change or not and finally it shows the similarities and differences between the two states.

This document provides and introduction to the world of forces and the basis for physics. it include examples and tips on some different questions regarding some of the contents.

This documents is an example of a biology case study on invasive species. It describes what and invasive specie is and why they are a harm to the environment around them. It is a very popular biology question on the topic ecosystems and habitats.

This page provides a well described introduction to moments and how to calculate them and what they are in general. It is very useful for Physics exams as moments and force are a large part of physics in year 9.

This page shows the electrical units that are used in science all around the world and what they are used for. E.g. Current -- Amperes (Amps)

This page shows multiple diagrams of root hair cells and how they work. The use of these diagrams is for studying for questions about how plants gain nutrition through chemicals such as nitrates etc.

This document gives the defenitions of some of the most commonly used terms in chemistry and in science in general. Terms like exothermic and endothermic are used in all branches of science and they are some of the most useful things to know.

This page is about the equation Force is Acceleration x Mass.