Daily Practice · GCSE Science
August 2013 - GCSE Science 5-a-day
Every GCSE Science sheet published in August 2013, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in August 2013
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2013A transformer's primary coil is connected to a 12 V supply and has 60 turns. Calculate the number of turns needed on the secondary coil to produce an output of 3.0 V.
- 2nd August 2013Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 3rd August 2013What is an enzyme?
- 4th August 2013Describe phagocytosis.
- 5th August 2013Define a synapse.
- 6th August 2013Give one example of an abiotic factor that could affect where a plant species grows.
- 7th August 2013Name two methods of desalinating seawater.
- 8th August 2013Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 9th August 2013Give the formula for percentage yield.
- 10th August 2013A 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.
- 11th August 2013State the general formula of the alkanes.
- 12th August 2013State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
- 13th August 2013Distinguish repeatability from reproducibility.
- 14th August 2013How does the resistance of a thermistor change as it gets hotter?
- 15th August 2013What is an alpha particle made of?
- 16th August 2013Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 17th August 2013Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 18th August 2013Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 19th August 2013Explain why a plant cell placed in pure water does not burst.
- 20th August 2013Describe how phagocytes destroy pathogens in the body.
- 21st August 2013A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 22nd August 2013State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 23rd August 2013In the rate experiment where a cross disappears, why is the result subjective?
- 24th August 2013An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
- 25th August 2013Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
- 26th August 2013In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 27th August 2013State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 28th August 2013A solid gives a lilac flame test. Name the metal ion present.
- 29th August 2013Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
- 30th August 2013Give the equation for efficiency in terms of energy.
- 31st August 2013Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.