Students list advantages and disadvantages of recycling. The assessment focuses on students' ability to identify impacts on the environment and its inhabitants (including people).
Task: Students suggest ways to stop sand dunes blowing on to farmland, and describe the predicted outcome of their suggestions. Assessment focus: application of knowledge of erosion to a specific situation.
Students are provided with a sequence of diagrams showing the erosion of a waterfall by a river over time. Students complete diagrams for two other waterfall erosion sequences. Each waterfall has different combinations of layers of soft and hard rocks.
Students read some information about testing the absorbency of different papers. They outline two features that need to be kept the same if the tests were to be fair.
For this practical task students use their knowledge about the properties of gases to explain their observations when they blow up a balloon that is inside a bottle and a balloon that is not inside a bottle.
Using a diagram of a torch, students explain the function of the following parts; cell, metal cone, metal strip, spring, and switch. Students also draw a circuit diagram for the torch.
Students indicate for each of six different variables those that need to be kept the same for an investigation about dissolving different types of sugar.
For this practical task students follow a plan to determine the effects of a weak acid on different building materials. Students need to put their results into a table and write a conclusion.
For this practical task students complete a table of observations on nine common materials. Students then use their results to group the materials according to similar properties.
This practical task requires students to sort some common items from hardest to softest. Students then explain a test that they used to help determine this.