Explain This... GCSE Science

This series of short explainer films comprises three clips each for GCSE biology, chemistry and physics. Each film focuses on a GCSE required practical included in AQA, Edexcel and OCR specifications. The following topics are covered:

These short films are suitable for teaching biology, chemistry, physics and combined science at Key Stage 4 and GCSE in England, Wales and Northern Ireland, and at National 4 and 5 in Scotland.

Biology

Investigate osmosis in plant tissue
video
Investigate the effect of pH on enzyme activity
video
Investigate the effect of light intensity on the rate of photosynthesis
video

Chemistry

Investigate electrolysis of aqueous solutions using inert electrodes
video
Prepare a pure, dry sample of a soluble salt from an insoluble oxide
video
Investigate the separation of substances using paper chromatography
video

Physics

Investigate the I–V characteristics of circuit elements such as a filament lamp, diode and resistor at constant temperature
video
Investigate the effect of varying force or mass on the acceleration of an object
video
Measure the frequency, wavelength and speed of waves in a ripple tank
video