Table of Contents
Living world strand - level 5: ecology - different life styles; living in communities; energy flow and recycling; human body - food and digestion; breathing and circulaiton; excretion and movement; sensitivity and co-ordination; reproduction and genes. Physical world strand - level 5: forces - speed and acceleration; force, mass and motion; more about forces; levers, work and energy; electricity - charged particles; measuring electricity; resistance and power; magnetism and electricity. Material world strand -level 5: acids - reviewing atoms; acids in action; acid reactions; pH in everyday life; materials - meet the metals; metal reactions; fuel and energy; making plastics. Planet Earth and beyond strand - level 5: geology - plate tectonics; shaping the crust; volcanoes a in action; earthquake in action.