Required Practical: Dissections Dissections are a vital part of scientific research They allow for the internal structures of organs to be examined so that theories can be made about how the...
Edexcel IGCSE Maths 复习笔记 3.11.4 Differentiation - Kinematics What is kinematics? Kinematics is the analysis of the motion of a particle linking the three vector quantities displacement, velocit...
Edexcel IGCSE Maths 复习笔记 3.11.3 Differentiation - Problem Solving What problems could involve differentiation? Differentiation allows analysis of how one quantity changes as another does The gr...
Edexcel IGCSE Maths 复习笔记 3.11.2 Differentiation - Turning Points Remind me of the rule for differentiating powers If y = kxn then dy/dx = knxn-1 What is a turning point? Th...
Correlations & Causal Relationships - The Heart Correlation is an association or relationship between variables Causation occurs when one variable has an influence or is influenced by, a...
Interpreting Data Relating to the Cardiovascular System A cardiac cycle is the sequence of events that make up a single heartbeat It includes periods of heart muscle contraction and relaxati...
Capillaries & Tissue Fluid Capillaries are another type of blood vessel present in the circulatory system They have thin walls which are “leaky”, allowing substances to leave the blood t...
Arteries, Arterioles & Veins The body contains several different types of blood vessel: Arteries: transport blood away from the heart (usually at high pressure) Veins: transport blood to...
Apparatus & Techniques: Investing Factors Affecting Heart Rate There are a wide range of factors that influence the heart rate of an organism Experiments can be designed to investigate t...
