Workshop 2

Contents

Unit 7I Energy resources

• are introduced to the concept of energy in the context of fuels as convenient and therefore valuable sources
• consider the nature and origin of fossil fuels and renewable sources of energy and how their use has implications for the environment
• consolidate and extend their ideas about energy resources for living things: food for people and sunlight for plants
• link the energy resources to the role of the Sun as the ultimate source of most of the Earth’s energy resources

Unit 7J Electrical circuits

• consolidate and extend their ideas about circuits
• use concepts of electric current and energy transfer to explain the working of circuits
• explain patterns in the measurements of current and voltage
• use the concept of resistance qualitatively
• build circuits in which current flow is usefully controlled
• consider the hazards of electricity for humans

Unit 8I Heating and cooling

• recognise the need for a temperature scale 
• learn to distinguish between heat (as energy) and temperature
• learn about mechanisms of heat transfer: conduction, convection and radiation, and apply this to familiar contexts
• learn about expansion and change of state in solids, liquids and gases
• use the particle model to explain conduction, convection and change of state

Unit 9I Energy and electricity

• explore a range of useful energy transfers and transformations
• discuss the use of electricity as a convenient way to transfer energy to do useful things
• associate the concept of voltage with the transfer of energy in a circuit
• investigate the voltage of cells
• study how electricity is generated, with reference to environmental impacts
• use the principle of conservation of energy to identify ways in which energy is dissipated during transfers

Extracts taken from ‘Science: A scheme of work for key stage 3’ (2000) (Qualifications and Curriculum Authority)