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Students answer short questions to show their knowledge of heat transfer through metal and plastic spoons.

Task: Identify the colours on a taxi sitting under a red streetlight. Assessment focus: Coloured light can be produced by blocking some parts of the spectrum.

Task: Identify which actions would make it easier to attract a paper clip. Assessment focus: magnetism.

Students select from four pictures of laden trucks which is least likely to roll over when cornering, and explain their predictions. This resource assesses students' understanding of centre of gravity.

Students explain how the parts of a torch help it work.

Students are given some information about simple machines, and are asked to label the effort, load, and pivot on three examples of simple machines.

Students suggest why two girls of the same weight go down a slide at different speeds, and then identify the forces acting on the girls. The assessment focus is on the forces of gravity and friction.

Students answer four questions on echoes and sound insulation.

Task: Select the correct reason why a bird on a power line does not get electrocuted and select pictures of danger of electrocution, justifying choice. Assessment focus: understanding of the route taken by electricity/electrocution.

From a collection of familiar objects, students identify all those that can be a source of light. They then explain the term 'source of light'.

Task: Answer two questions about light shades. Assessment focus: reflection.

Students answer questions about the size of a balloon as the air temperature changes. The resource assesses students' understanding of the effect of temperature on gases.

Task: Answer two questions. Assessment focus: insulation.

Students place five statements in order to show how sound travels from its source to the brain.

Students investigate magnetic repulsion using two magnets and pieces of iron. They are assessed on their understanding of like poles repelling.

Students name the force that delivers water to households from a water tower and then explain advantages and disadvantages of a wind-powered pump compared to a petrol-powered pump.

Students use circuit diagrams to answer three questions about switches and which lamps will light up.

Identify from four circuit diagrams which bulbs will light up. Assessment focus: electrical circuits.

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

Task: Discuss opinions, presented as a concept cartoon, about why a toy car rolled down a slope eventually stops and develop group explanation. Assessment focus: explanations