Daily Practice · GCSE Science
October 2020 - GCSE Science 5-a-day
Every GCSE Science sheet published in October 2020, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in October 2020
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st October 2020Name the small molecule typically released as a by-product during condensation polymerisation.
- 2nd October 2020Describe, in terms of wavelength, the difference between the radiation the Earth receives from the Sun and the radiation it re-emits from its surface.
- 3rd October 2020What happens to the energy described as 'wasted' in a transfer?
- 4th October 2020State what happens to the internal energy of a substance as it is heated, in terms of the kinetic and potential energy of its particles.
- 5th October 2020Explain the difference between irradiation and contamination.
- 6th October 2020A water wave has a frequency of 4 Hz and a wavelength of 0.5 m. Calculate its speed.
- 7th October 2020A transformer's primary coil is connected to a 12 V supply and has 60 turns. Calculate the number of turns needed on the secondary coil to produce an output of 3.0 V.
- 8th October 2020A microscope has a x10 eyepiece lens and a x20 objective lens. Calculate the total magnification.
- 9th October 2020Name the products of protein digestion.
- 10th October 2020State the difference between an antibiotic and a painkiller.
- 11th October 2020Define a synapse.
- 12th October 2020Give one example of an abiotic factor that could affect where a plant species grows.
- 13th October 2020Explain why potable water is not the same as pure water.
- 14th October 2020Explain why sodium chloride conducts electricity when molten but not when solid.
- 15th October 2020Convert 250 cubic centimetres into cubic decimetres.
- 16th October 2020A student heats solid copper carbonate strongly in a test tube, and it breaks down into copper oxide and carbon dioxide. Heating must be continued throughout the reaction for it to keep going. State whether this thermal decomposition reaction is exothermic or endothermic, and explain your reasoning.
- 17th October 2020State the general formula of the alkanes.
- 18th October 2020Write the formula for calculating an Rf value.
- 19th October 2020Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
- 20th October 2020What happens to the total resistance when a second resistor is added in parallel, and why?
- 21st October 2020What happens inside the nucleus when a beta particle is emitted?
- 22nd October 2020Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 23rd October 2020Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 24th October 2020Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 25th October 2020State three factors that increase the rate of diffusion.
- 26th October 2020Explain why a small number of healthy volunteers are given a very low dose of a new drug in the first stage of a clinical trial.
- 27th October 2020A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 28th October 2020State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 29th October 2020What does 'concordant' mean when applied to titres?
- 30th October 2020What did the alpha scattering experiment show that the plum pudding model could not explain?
- 31st October 2020Magnesium is burned in an open crucible and the mass increases. Explain why.