Students name the force that delivers water to households from a water tower and then explain advantages and disadvantages of a wind-powered pump compared to a petrol-powered pump.
Students are given an outline of an investigation on metal corrosion and a graph of some results. Students' ability to interpret the graph and knowledge of fair testing is assessed via short answer questions.
Task: Students make predictions about evaporation rates of instances where surface areas are a factor, select which variable is being investigated in both examples and explain their answer. Assessment focus: Using knowledge of surface area to make predictions.