Daily Practice · GCSE Science
July 1997 - GCSE Science 5-a-day
Every sheet in July 1997
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 1997Define power and give its unit.
- 2nd July 1997Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 3rd July 1997Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 4th July 1997A wave has a period of 0.005 s. Calculate its frequency.
- 5th July 1997State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 6th July 1997Give one advantage of a light microscope over an electron microscope.
- 7th July 1997Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 8th July 1997Name the gas that is released as a product of photosynthesis.
- 9th July 1997Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 10th July 1997Thermus 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 1997Explain why potable water is not required to be chemically pure.
- 12th July 1997Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 13th July 1997State the name given to a reaction in which a substance loses electrons.
- 14th July 1997State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 15th July 1997State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 16th July 1997Give two processes that removed carbon dioxide from the early atmosphere.
- 17th July 1997Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 18th July 1997Give the colour and function of the earth wire.
- 19th July 1997What observation showed the nucleus is positively charged and very small?
- 20th July 1997Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
- 21st July 1997State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 22nd July 1997A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.
- 23rd July 1997Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 24th July 1997Give one way of reducing the spread of malaria.
- 25th July 1997A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
- 26th July 1997Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
- 27th July 1997Write the electronic structure of an atom with 12 electrons.
- 28th July 1997Why do elements in the same group have similar chemical properties?
- 29th July 1997Why is the amount of product directly proportional to the amount of limiting reactant?
- 30th July 1997A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 31st July 1997State what is meant by dynamic equilibrium.