Daily Practice · GCSE Science
July 2008 - GCSE Science 5-a-day
Every GCSE Science sheet published in July 2008, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in July 2008
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 2008Define power and give its unit.
- 2nd July 2008Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 3rd July 2008A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 4th July 2008A wave has a frequency of 50 Hz. Calculate its period.
- 5th July 2008Explain, in terms of forces, why an orbiting satellite does not travel off in a straight line.
- 6th July 2008Give one advantage of a light microscope over an electron microscope.
- 7th July 2008Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 8th July 2008State three factors that can limit the rate of photosynthesis.
- 9th July 2008State one risk factor linked to type 2 diabetes.
- 10th July 2008Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.
- 11th July 2008Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 12th July 2008Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 13th July 2008Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 14th July 2008State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 15th July 2008Define the term 'homologous series'.
- 16th July 2008Name three greenhouse gases.
- 17th July 2008A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
- 18th July 2008Give the colour and function of the earth wire.
- 19th July 2008What observation showed the nucleus is positively charged and very small?
- 20th July 2008Write down the equation that links moment, force and distance.
- 21st July 2008A wire of length 0.20 m carries a current of 5.0 A at right angles to a magnetic field of flux density 0.60 T. Calculate the force on the wire.
- 22nd July 2008A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.
- 23rd July 2008Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 24th July 2008Give one way of reducing the spread of malaria.
- 25th July 2008Explain, in terms of blood vessels, how the skin helps to cool the body when it is too hot.
- 26th July 2008Define speciation.
- 27th July 2008Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 28th July 2008Why do elements in the same group have similar chemical properties?
- 29th July 2008Why is the amount of product directly proportional to the amount of limiting reactant?
- 30th July 2008Explain, in terms of bonds, why breaking bonds is an endothermic process.
- 31st July 2008State the catalyst commonly used in the Haber process.