Daily Practice · GCSE Science
December 2011 - GCSE Science 5-a-day
Every GCSE Science sheet published in December 2011, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in December 2011
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 2011What did Bohr add to the nuclear model?
- 2nd December 2011Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
- 3rd December 2011State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 4th December 2011Why must the same volume of solution be used in every tube in an enzyme investigation?
- 5th December 2011An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
- 6th December 2011Describe the symptoms of rose black spot and its effect on the plant.
- 7th December 2011A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
- 8th December 2011Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
- 9th December 2011An atom has atomic number 11 and mass number 23. State the number of protons.
- 10th December 2011Why did Mendeleev leave gaps in his table?
- 11th December 2011Calculate the mass of 0.25 mol of sodium hydroxide, NaOH. (Na = 23, O = 16, H = 1)
- 12th December 2011State whether the combustion of methane is exothermic or endothermic.
- 13th December 2011State what is meant by dynamic equilibrium.
- 14th December 2011State the flame test colour for sodium ions.
- 15th December 2011Calculate the gravitational potential energy gained by a 60 kg person climbing 5 m. (g = 9.8 N/kg)
- 16th December 2011Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
- 17th December 2011A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
- 18th December 2011A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 19th December 2011State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 20th December 2011State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 21st December 2011State three functions of mitosis.
- 22nd December 2011What happens to guard cells when a plant is short of water?
- 23rd December 2011Write the word equation for photosynthesis.
- 24th December 2011Define the term allele.
- 25th December 2011State one method used to try to maintain biodiversity.
- 26th December 2011Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.
- 27th December 2011Why is graphite soft and slippery?
- 28th December 2011Explain the difference between a strong acid and a concentrated acid.
- 29th December 2011A reaction between calcium carbonate and hydrochloric acid produces 72 cm3 of carbon dioxide gas in 30 seconds. Calculate the mean rate of reaction.
- 30th December 2011Explain why carboxylic acids are described as 'weak acids'.
- 31st December 2011Explain why the natural greenhouse effect is necessary for life on Earth, rather than being a purely harmful process.