Daily Practice · GCSE Science
January 2005 - GCSE Science 5-a-day
Every GCSE Science sheet published in January 2005, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in January 2005
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2005Define the term 'vector quantity' and give one example.
- 2nd January 2005Name the type of electromagnetic wave used to treat cancer by killing cells in a tumour, and state which part of the atom emits it.
- 3rd January 2005State one difference between a moon and an artificial satellite.
- 4th January 2005Where in a plant are stem cells found?
- 5th January 2005Name the process by which dissolved sugars are transported in the phloem.
- 6th January 2005Why is photosynthesis described as endothermic?
- 7th January 2005Define phenotype.
- 8th January 2005State one human activity that reduces the amount of land available for other organisms.
- 9th January 2005State the two substances that must both be present for iron to rust.
- 10th January 2005State the size range of a nanoparticle.
- 11th January 2005Why is aluminium extracted by electrolysis rather than by reduction with carbon?
- 12th January 2005Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
- 13th January 2005Name the type of biological molecule formed when amino acid monomers join together by condensation polymerisation.
- 14th January 2005Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 15th January 2005What happens to the energy described as 'wasted' in a transfer?
- 16th January 2005A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 17th January 2005Explain the difference between irradiation and contamination.
- 18th January 2005A radio wave has a wavelength of 3 m. Calculate its frequency, given that all electromagnetic waves travel at 3 x 10^8 m/s in a vacuum.
- 19th January 2005Explain why electricity is transmitted through the National Grid at a very high voltage rather than at the voltage used in homes.
- 20th January 2005A cube-shaped model cell has sides of length 3 cm. Calculate the surface area to volume ratio of the cube. Give your answer in the form n : 1.
- 21st January 2005Name the products of protein digestion.
- 22nd January 2005State the difference between an antibiotic and a painkiller.
- 23rd January 2005Name the chemical released at a synapse that carries the signal across the gap.
- 24th January 2005Explain why deforestation to create land for cattle grazing can reduce biodiversity.
- 25th January 2005Name the four stages usually considered in a life cycle assessment of a product.
- 26th January 2005A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.
- 27th January 2005Convert 250 cubic centimetres into cubic decimetres.
- 28th January 2005A 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.
- 29th January 2005State two products, other than water, that can be formed during the incomplete combustion of a hydrocarbon.
- 30th January 2005Write the formula for calculating an Rf value.
- 31st January 2005Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.