Daily Practice · GCSE Science
March 2004 - GCSE Science 5-a-day
Every GCSE Science sheet published in March 2004, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in March 2004
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2004State the type of effector that produces a physical response by contracting.
- 2nd March 2004Give one example of a biotic factor that could affect a population of rabbits.
- 3rd March 2004Name two methods of desalinating seawater.
- 4th March 2004Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 5th March 2004Give the formula for percentage yield.
- 6th March 2004A student reacts excess zinc powder with 25 cm3 of copper sulfate solution in a polystyrene cup. The starting temperature is 21.0 degrees C and the maximum temperature reached is 58.5 degrees C. Calculate the temperature change.
- 7th March 2004Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O
- 8th March 2004State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
- 9th March 2004Distinguish repeatability from reproducibility.
- 10th March 2004How does the resistance of a thermistor change as it gets hotter?
- 11th March 2004What is an alpha particle made of?
- 12th March 2004State two factors that increase a driver's thinking distance.
- 13th March 2004Name a typical material used to make a permanent magnet, and a typical material used to make an induced (temporary) magnet.
- 14th March 2004State, in one sentence, what the Big Bang model proposes about the early universe.
- 15th March 2004Explain why a plant cell placed in pure water does not burst.
- 16th March 2004Describe how phagocytes destroy pathogens in the body.
- 17th March 2004A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.
- 18th March 2004A man who is a known carrier of cystic fibrosis (Ff) has children with a woman who has been confirmed to carry no cystic fibrosis allele at all (FF). Explain why none of their children can have cystic fibrosis.
- 19th March 2004In the rate experiment where a cross disappears, why is the result subjective?
- 20th March 2004An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
- 21st March 2004Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
- 22nd March 2004Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 23rd March 2004Explain why increasing temperature increases the rate of a reaction, referring to both the frequency and the energy of collisions.
- 24th March 2004A solid gives a lilac flame test. Name the metal ion present.
- 25th March 2004Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
- 26th March 2004Give the equation for efficiency in terms of energy.
- 27th March 2004Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.
- 28th March 2004Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 29th March 2004Sound waves travel through a steel rail at approximately 5900 m/s. A sound wave sent along the rail has a frequency of 2950 Hz. Calculate its wavelength.
- 30th March 2004State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 31st March 2004State the function of the mitochondria.