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Students use their knowledge of the angle between a tangent and radius property and the sum of the angles in a quadrilateral to work out unknown angles in a diagram and explain their workings.

This task is about students selecting 'always', 'maybe' or 'never' to describe the probability of a range of events happening.

Students calculate increases in length, area, and volume, and relate this to the scale factor for an enlargement.

For this practical task students are assessed on their ability to observe changes that have occurred to 'popping' corn before and after it is heated. Drawings and written observations are required.

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 work out the missing dimension on a rectangle and show how they obtained it using proportional reasoning.

Explain what affects the distance travelled by toy cars, and why they eventually stop. Assessment focus: science explanations using ideas about forces and energy.

Task: Answer two questions about melting and two questions about dissolving. Assessment focus: describe and explain melting and dissolving.