Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
30th August 2025
- 1The Solar System, Orbital Motion and Satellites
Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 2Red-shift and the Expanding Universe
State what red-shift shows about the motion of most distant galaxies.
- 3Biology Required Practicals and Data Analysis
In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 4Cell Biology
State one structure found in a bacterial cell but not in an animal cell.
- 5Cell Structure and Microscopy
Why is a stain such as iodine used when preparing a slide?
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