Daily Practice · GCSE Science
June 1983 5-a-day
Every sheet in June 1983
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 1983Name the organ system responsible for breaking food down into small, soluble molecules.
- 2nd June 1983Give one way of reducing the spread of malaria.
- 3rd June 1983Explain, in terms of blood vessels, how the skin helps to cool the body when it is too hot.
- 4th June 1983Define speciation.
- 5th June 1983An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 6th June 1983Why do elements in the same group have similar chemical properties?
- 7th June 1983Why is the amount of product directly proportional to the amount of limiting reactant?
- 8th June 1983Give one everyday example of an endothermic process.
- 9th June 1983State the catalyst commonly used in the Haber process.
- 10th June 1983A solution forms a green precipitate with sodium hydroxide solution. Which ion is present?
- 11th June 1983Give the equation for wave speed and its units.
- 12th June 1983A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 13th June 1983Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?
- 14th June 1983Define the term 'vector quantity' and give one example.
- 15th June 1983Name the type of electromagnetic wave used to treat cancer by killing cells in a tumour, and state which part of the atom emits it.
- 16th June 1983State one difference between a moon and an artificial satellite.
- 17th June 1983Give one risk of stem cell treatment.
- 18th June 1983Why does a potometer measure water uptake rather than transpiration directly?
- 19th June 1983Why does the rate of photosynthesis fall at very high temperatures?
- 20th June 1983Define phenotype.
- 21st June 1983Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 22nd June 1983State the four stages considered in a life cycle assessment.
- 23rd June 1983Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 24th June 1983Define oxidation in terms of electrons.
- 25th June 1983State two units that the rate of a reaction can be measured in.
- 26th June 1983Name the type of biological molecule formed when amino acid monomers join together by condensation polymerisation.
- 27th June 1983Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.
- 28th June 1983A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 29th June 1983A block has a volume of 50 cm^3 and a mass of 135 g. Calculate its density.
- 30th June 1983A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.