Students are given information and a diagram about a drink bottle overflowing when it had been put into the freezer. Students are asked to explain why this happened and how they could prevent it.
Task: Predict, Observe, Explain, (POE) activity observing what happens to air in a balloon when it is heated. Assessment focus: behaviour of gases when heated and cooled.
Task: Create, use and identify ‘rules’ based on observable and/or measurable physical properties of common plastics. Assessment focus: classifying & identifying.
Students are asked to identify a solid, liquid, and a gas. They are also asked to write down two things that are generally true for each of these three states of matter.
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.
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.
Students are given some solids and liquids for this practical task. They plan how they would find out which liquids are solvents for any given solid, carry out the task, and write a conclusion.
For this practical task students determine the viscosity of different household susbstances such as golden syrup, cooking oil, fruit juice etc. Students complete the experiment and construct a chart showing their results and observations.
Task: Process and interpret data in a table to identify the best paper to use for a game. Evaluate the reliability of the collected data. Assessment focus: using evidence to answer a question.
Task: Look at the arrangement of fibres for four different paper towels, arrange an appropriate sequence of instructions, carry out the instructions and then communicate the data in an appropriate graph that will help answer the question. Different elements of the nature of science are embedded throughout the tasks. Assessment focus: planning and carrying out a fair test, using evidence to answer a question.
In this practical students are first required to identify as many uses of paper they can think of. Then, using samples of different paper types, they identify particular uses for that type of paper and reasons why the paper is used for this purpose.
Task: Describe and compare some physical properties of plastic objects and identify the properties scientists might use for classifying materials. Assessment focus: classifying using physical properties.