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Task: Answer questions about rowing. Assessment focus: levers.

Task: Answer two multiple choice questions. Assessment focus: managing variables.

Task: Answer questions about levers. Assessment focus: levers.

Task: Use displacement to measure volume. Assessment focus: displacement.

Task: Identify patterns in a table and suggest ways to make a toy travel further. Assessment focus: interpreting data; energy; forces.

Students read a passage about a proposed fair test and then list four variables that need to be controlled.

Task: Explain how to use the magnet to remove a drawing pin out of a glass of water without putting the magnet in the glass, touching the glass with hands, or spilling the water. Assessment focus: using knowledge of magnetism to solve a problem.

Task: Students answer questions about what will make mountain bike riders go faster. Assessment focus: Air resistance.

Students describe the images seen in flat and convex mirrors.

Choose which toy vehicle will roll further, and explain why. The two vehicles are set up under different conditions (ramps at different slopes, rolling onto different surfaces at the bottom). Assessment focus: science explanations using ideas about forces and energy.

Students use the term force to explain why a heavier hammer could drive nails into denser material and explain density.

Students carry out a simple experiment with static electricity and then explain their findings.

Students carry out a simple experiment to illustrate refraction. They then explain why this happened.

Task: read an article about releasing hand-reared kaka into a safe environment and answer questions about the research. Assessment focus: field investigations.

Students are asked to explain why the Southern Cross appears not to be in the same place in the night sky that it was a few months previously.

This task requires students to develop questions about their local geology and name possible information sources.

Students write a story about the water cycle using a given sequence of events that take place.

This practical task requires students to make observations of three different types of soils and record their observations in a chart.

For this practical task students investigate and report on what they noticed about a model river and how different sized materials are moved by the water.

For this practical students make observations about dissolving, and plan and carry out an investigation to find out what makes sugar dissolve more quickly.

From a diagram of an experimental set up, students answer questions based on fair testing principles. Questions cover the control of variables, and measurement of results.

This practical task investigates the effect of temperature on the rate at which corn pops. Students collect data and make a conclusion.

Describe methods for speeding up and slowing down melting of an ice cube using one of three provided objects, and explain why the methods would work. Assessment focus: planning an investigation.

This practical task requires students to describe to a partner their observations about an ice cube melting. Students then develop questions about what they observe.

This practical task requires students to make observations of the changes that occur in five common foods as they are cooked.