Grateful acknowledgement is made to the following sources:
Photographs and images
Resource 3 : ‘What lifts an airplane?’ Practical activities to carry out with your class : Adapted from Primary Science Programme Grade 4 Air Workshop Report
Resource 4: The slow paper race: Adapted from Primary Science Programme Grade 4 Air Workshop Report
Every effort has been made to conta ct copyright holders. If any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity.