Modern Medicine & Participation in Sports Keyhole surgery Sports injuries are a common occurrence since the body is placed under stress when participating in sporting activities Some of these i...
Intensity of Exercise Effects of too little exercise on health Exercise is an important part of a healthy lifestyle Not doing enough exercise can have a detrimental effect on the health of an indiv...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：3.2.3 Catalysts Catalysts & Rates Catalysts are substances which speed up the rate of a reaction without themselves being altered or con...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：3.2.2 Explaining Rates Explaining Rates Increasing the number of successful collisions means that a greater proportion of reactant particles...
Practical: Investigating the Effects of Exercise Measuring breathing There are four main ways that breathing can be scientifically measured. These include: Tidal volume - this is the volume of air ...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：3.2.1 Measuring Rates Measuring Rates You should be able to describe experiments to investigate the effect of surface area, concentration, t...
Variations in Breathing Rate & Heart Rate During exercise, muscle contraction occurs more frequently, requiring more energy The rate of aerobic respiration increases to meet the increase in ene...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：3.1.4 Practical: Investigating Temperature Changes Practical: Investigating Temperature Changes Aim: To perform a calorimetry study of the reaction...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：3.1.3 Energetics Calculations Calculate Heat Energy Change In order the calculate heat energy changes you need to know the mass of the subst...
