Students consider the potential for chemical change when a range of everyday substances are mixed. They use logical reasoning to work out the consequences of four pairs of reactions.
Task: Predict, observe and explain what will happen when a balloon containing another balloon filled with water is thrown. Assessment focus: making and explaining predictions and observations.
Task: Students play a tag game that simulates the relationships between elements within a waterway, and discuss how different scenarios impact on the populations living there. Assessment focus: changes within a habitat affect everything living there.