Daily Practice · GCSE Science
May 2012 - GCSE Science 5-a-day
Every GCSE Science sheet published in May 2012, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in May 2012
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 2012State the function of the valves in the heart and in veins.
- 2nd May 2012Name the gas that is released as a product of photosynthesis.
- 3rd May 2012Name the hormone released by the adrenal glands that prepares the body for fight or flight.
- 4th May 2012The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
- 5th May 2012Explain why potable water is not required to be chemically pure.
- 6th May 2012Write the formula of calcium chloride and explain the ratio.
- 7th May 2012State the name given to a reaction in which a substance loses electrons.
- 8th May 2012Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
- 9th May 2012State the general formula of the alkenes.
- 10th May 2012Give two processes that removed carbon dioxide from the early atmosphere.
- 11th May 2012Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 12th May 2012Give the equation linking energy transferred, charge flow and potential difference.
- 13th May 2012Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
- 14th May 2012A box of weight 120 N has a base area of 0.40 m^2. Calculate the pressure it exerts on the ground.
- 15th May 2012Explain why a current-carrying wire positioned exactly parallel to a magnetic field experiences no force.
- 16th May 2012Why does taking repeat readings and calculating a mean improve the data?
- 17th May 2012Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 18th May 2012State two ways measles is prevented from spreading.
- 19th May 2012Name the three parts common to every homeostatic control system.
- 20th May 2012State one advantage and one disadvantage of selective breeding in farm animals.
- 21st May 2012Write the electronic structure of an atom with 12 electrons.
- 22nd May 2012Give two observations when lithium is added to water.
- 23rd May 2012State the value of the Avogadro constant and what it counts.
- 24th May 2012A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 25th May 2012In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
- 26th May 2012Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 27th May 2012Write the equation linking power, energy and time, and rearrange it for time.
- 28th May 2012State the UK mains supply frequency and typical potential difference.
- 29th May 2012A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 30th May 2012A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
- 31st May 2012A microwave oven uses electromagnetic waves with a wavelength of 0.12 m. Calculate the frequency of these waves (speed of light = 3 x 10^8 m/s).