Daily Practice · GCSE Science
September 2010 - GCSE Science 5-a-day
Every GCSE Science sheet published in September 2010, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in September 2010
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 2010Convert 0.02 mm into micrometres (um).
- 2nd September 2010Why does a food test for sugars need a water bath?
- 3rd September 2010Explain what is meant by a double blind trial.
- 4th September 2010Put these into the correct order for a reflex arc: motor neuron, receptor, effector, relay neuron, sensory neuron.
- 5th September 2010State one structural adaptation of a polar bear that helps it survive in a cold environment.
- 6th September 2010State one benefit of recycling metal rather than extracting new metal from its ore.
- 7th September 2010Name the three types of strong chemical bonding.
- 8th September 2010Give the formula for atom economy.
- 9th September 2010Explain, in terms of the reaction pathway, why adding a catalyst increases the rate of a reaction without changing the overall energy change of the reaction.
- 10th September 2010Name the process used to separate crude oil into fractions.
- 11th September 2010State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 12th September 2010How is the uncertainty in a set of repeated readings usually estimated?
- 13th September 2010Define electric current.
- 14th September 2010A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 15th September 2010State Newton's First Law of Motion.
- 16th September 2010Two bar magnets are placed with their north poles facing each other. State what happens to the magnets.
- 17th September 2010State what is meant by red-shift.
- 18th September 2010Calculate the surface area to volume ratio of a cube of side 2 cm.
- 19th September 2010State one way that pathogens can be spread from person to person.
- 20th September 2010Explain why breathing rate and breathing depth both increase during exercise.
- 21st September 2010In pea plants, purple flower colour (allele H) is dominant over white flower colour (allele h). State the phenotype of a plant with genotype Hh.
- 22nd September 2010Give the resolution of a burette that can be read to the nearest half of a small division.
- 23rd September 2010Why is an atom electrically neutral?
- 24th September 2010State the law of conservation of mass.
- 25th September 2010State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
- 26th September 2010Explain how a catalyst increases the rate of a reaction without being used up.
- 27th September 2010Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
- 28th September 2010Explain why carbon monoxide is dangerous even though it has no smell.
- 29th September 2010Why can no device be 100 percent efficient?
- 30th September 2010Why is melting described as a physical change?