Daily Practice · GCSE Science
March 1975 5-a-day
Every sheet in March 1975
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 1975State one human activity that reduces the amount of land available for other organisms.
- 2nd March 1975State the two substances that must both be present for iron to rust.
- 3rd March 1975State the size range of a nanoparticle.
- 4th March 1975Why is aluminium extracted by electrolysis rather than by reduction with carbon?
- 5th March 1975Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
- 6th March 1975State the functional group found in all carboxylic acids.
- 7th March 1975Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 8th March 1975What happens to the energy described as 'wasted' in a transfer?
- 9th March 1975Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 10th March 1975Explain the difference between irradiation and contamination.
- 11th March 1975State the speed at which all electromagnetic waves travel through a vacuum.
- 12th March 1975A transformer has 500 turns on its primary coil and 2500 turns on its secondary coil. State, with a reason, whether this is a step-up or a step-down transformer.
- 13th March 1975A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).
- 14th March 1975Name the products of protein digestion.
- 15th March 1975State the difference between an antibiotic and a painkiller.
- 16th March 1975Name the two parts of the central nervous system (CNS).
- 17th March 1975Name the group of organisms that break down dead plant and animal matter, returning mineral ions to the soil.
- 18th March 1975State the two main steps used to produce potable water from a fresh water source.
- 19th March 1975State the charge on a calcium ion (Group 2).
- 20th March 1975Convert 250 cubic centimetres into cubic decimetres.
- 21st March 1975A 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.
- 22nd March 1975Hexadecane (C16H34) is cracked to produce dodecane (C12H26) and one other product. Calculate the molecular formula of the other product.
- 23rd March 1975Write the formula for calculating an Rf value.
- 24th March 1975Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
- 25th March 1975What happens to the total resistance when a second resistor is added in parallel, and why?
- 26th March 1975What happens inside the nucleus when a beta particle is emitted?
- 27th March 1975A resultant force of 60 N acts on a wheelbarrow of mass 15 kg. Calculate its acceleration.
- 28th March 1975State the difference between a permanent magnet and an induced magnet.
- 29th March 1975State whether a galaxy moving towards Earth would show a red-shift or a blue-shift in its light.
- 30th March 1975State three factors that increase the rate of diffusion.
- 31st March 1975Name the vector that spreads the protist pathogen that causes malaria.