BIOLOGY CHEMISTRY PHYSICS Cells, Tissues & Organs Animal & Plant Cells Bacteria and Yeast Specialised Cells Diffusion Tissues & Organs Organ Systems Structure & Bonding Chemical Bonding Ionic Bonding Formulae of Ionic Compounds Covalent Bonding Metals Motion Distance-time Graphs Velocity & Acceleration More about Velocity-time Graphs Using Graphs Organisms in the Environment Photosynthesis Limiting Factors How Plants Use Glucose Making the Most of Photosynthesis Organisms in their Environment Measuring the Distribution of Organisms How Valid is the Data? Additional Science Unit 5 Structure and Properties Giant Ionic Structures Simple Molecules Giant Covalent Structures Giant Metallic Structures The Properties of Polymers Nanoscience How Much? The Mass of Atoms Masses of Atoms and Moles Percentages and Formulae Equations and Calculations The Yield of a Chemical Reaction Reversible Reactions Analysing Substances & Instrumental Analysis Forces Forces between Objects Resultant Force Force and Acceleration On the Road Falling Objects Stretching & Squashing Force & Speed Issues Work, Energy & Momentum Energy & Work Gravitational Potential Energy Kinetic Energy Momentum Explosions Impact Forces Car Safety Current Electricity Electrical Charges Electric Circuits Resistance More Current-Potential Difference Graphs Series Circuits Parallel Circuits