Daily Practice · GCSE Science
September 2013 - GCSE Science 5-a-day
Every GCSE Science sheet published in September 2013, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in September 2013
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 2013Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 2nd September 2013A wave has a period of 0.005 s. Calculate its frequency.
- 3rd September 2013State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 4th September 2013State the function of the mitochondria.
- 5th September 2013Which component of blood transports carbon dioxide, urea and hormones?
- 6th September 2013Name the gas that is released as a product of photosynthesis.
- 7th September 2013Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 8th September 2013A student places ten 1 m x 1 m quadrats at random across a school field of area 3000 m2 and counts a total of 45 dandelions across all ten quadrats. Estimate the total number of dandelions on the field.
- 9th September 2013Explain why potable water is not required to be chemically pure.
- 10th September 2013Why can metals conduct electricity when solid?
- 11th September 2013State the name given to a reaction in which a substance loses electrons.
- 12th September 2013State whether forming a new chemical bond requires energy or releases energy.
- 13th September 2013State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 14th September 2013Give two processes that removed carbon dioxide from the early atmosphere.
- 15th September 2013Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 16th September 2013What is the difference between alternating and direct current?
- 17th September 2013What observation showed that the atom is mostly empty space?
- 18th September 2013Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
- 19th September 2013State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 20th September 2013In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 21st September 2013Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 22nd September 2013Why can HIV not be treated with antibiotics?
- 23rd September 2013A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
- 24th September 2013Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
- 25th September 2013Write the electronic structure of an atom with 12 electrons.
- 26th September 2013State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
- 27th September 2013Define the limiting reactant.
- 28th September 2013A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 29th September 2013State what is meant by dynamic equilibrium.
- 30th September 2013Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.