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Sc4 Physical processes

Literacy resources

bulletSc1 Scientific enquiry
bulletSc2 Life processes and living things
bulletSc3 Materials and their properties
bulletSc4 Physical processes

Notebook iconBe seen, be safe

Objectives
To understand how light travels so that we can see objects. To know that different materials reflect different amounts of light. To be able to draw arrows to show light paths. To interpret graphs and explain findings in scientific terms.

Suggestions for use
Show the ‘Title’ page and discuss the question.

Show the ‘Diagram’ page and move the arrows to show the light leaving the headlights of the car, being reflected by the pedestrians and entering the eye of the driver.

Show the ‘Fabrics’ and ‘Investigation’ pages and deduce the factor being investigated. Add arrows to the ‘Investigation’ page to show the light path.

Show the ‘Investigation plan’ page and discuss how the factors are being controlled fairly. Show the ‘Data’ page and interpret.

Complete the final page by concluding which fabric is the safest. Explain the findings making reference to the reflection of light.

Point to note
The investigation depicted is poorly controlled because ambient light is not adequately controlled. The investigation would also be more satisfactory if the factors ‘type or texture of fabric’ and ‘colour of fabric’ were isolated. As an extension, discuss and investigate how either of these flaws might be rectified.

Notebook iconEar defenders

Objectives
To recognise that sound travels through materials other than air. To be able to interpret investigation data using scientific vocabulary relating to sound.

Suggestions for use
Show the ‘Title’ page and discuss the hazard associated with noisy environments and the need to prevent premature deafness.

Show the ‘Investigation page’ and deduce the factor being investigated.

Show the ‘Investigation plan’ page and discuss how the factors are being controlled fairly. Make particular reference to the fact that sound levels get quieter as distance increases.

Show the ‘Data’ page and interpret.

Complete the final page by concluding which material would make the best ear defenders. Explain the findings in scientific terms. Pupils need to know that sound is produced by vibrations and that it travels differently through different materials. The most effective insulating materials are those, which absorb vibrations.

Notebook iconForces

Objectives
To know that friction is a force that acts in opposition to movement and that it can be represented by an arrow.

Suggestions for use
Pages feature photographs depicting objects in motion with arrows representing some of the forces acting upon them. Move the green rectangles to reveal the nature of each force.

Point to note
Not all forces acting on each object are necessarily shown


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