Daily Practice · GCSE Science
August 2012 - GCSE Science 5-a-day
Every GCSE Science sheet published in August 2012, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in August 2012
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2012A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
- 2nd August 2012Why does the national grid transmit electricity at a very high potential difference?
- 3rd August 2012Why is the atomic model a good example of how scientific models change?
- 4th August 2012A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 5th August 2012State two ways of increasing the force produced by a motor effect setup, for a wire of fixed length at a fixed angle to the field.
- 6th August 2012Define the independent variable.
- 7th August 2012Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 8th August 2012Name the type of pathogen that causes malaria.
- 9th August 2012Name the hormone released when blood glucose concentration is too high, and state its overall effect.
- 10th August 2012Define mutation.
- 11th August 2012Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 12th August 2012Why are the noble gases unreactive?
- 13th August 2012How many atoms are there in 0.5 mol of helium?
- 14th August 2012Explain, in terms of bonds, why breaking bonds is an endothermic process.
- 15th August 2012The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 16th August 2012Describe the test, and the positive result, for ammonium ions.
- 17th August 2012Convert 3.5 kJ into joules.
- 18th August 2012In a series circuit, the current through one lamp is 0.30 A. State the current through a second lamp in the same circuit.
- 19th August 2012How is the temperature of a gas related to the motion of its molecules?
- 20th August 2012State what the gradient of a distance-time graph represents.
- 21st August 2012Explain why ultraviolet, X-rays and gamma rays can be hazardous to human health, but radio waves are not.
- 22nd August 2012Explain, in terms of forces, why a satellite in a stable orbit does not fall towards the Earth or fly off into space.
- 23rd August 2012How many pairs of chromosomes are there in a human body cell?
- 24th August 2012Where are most stomata found on a typical leaf, and why?
- 25th August 2012Name four limiting factors of photosynthesis.
- 26th August 2012In pea plants, the allele for tall stems (T) is dominant over the allele for short stems (t). A homozygous tall plant (TT) is crossed with a homozygous short plant (tt). State the genotype and phenotype of all the offspring.
- 27th August 2012State what is meant by the term biodiversity.
- 28th August 2012Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
- 29th August 2012Give one use of nanoparticles and one associated risk.
- 30th August 2012Give the ionic equation for neutralisation.
- 31st August 2012State what is shown on a rate graph when the line for the volume of gas produced becomes horizontal (flat).