In Science this term we have been learning about forces. During our learning, we have conducted some investigations on gravity, air resistance, friction and water resistance. We have learnt about variables involved in making sure that a test is fair. Once our results have been collected, we have been analysing these to write conclusions and then check whether our predictions have been correct. As part of our learning we have studied pulleys, levers and gears. We constructed our own wind-powered pulley systems.