Daily Practice · GCSE Science
June 2015 - GCSE Science 5-a-day
Every GCSE Science sheet published in June 2015, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in June 2015
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 2015Define electric current.
- 2nd June 2015A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 3rd June 2015Calculate the momentum of a 1200 kg car travelling at 18 m/s.
- 4th June 2015Explain why a compass needle placed just outside one end of a current-carrying solenoid lines up parallel to the solenoid's axis.
- 5th June 2015Name the second major piece of observational evidence, besides red-shift, that supports the Big Bang model.
- 6th June 2015Calculate the surface area to volume ratio of a cube of side 2 cm.
- 7th June 2015Explain why a small number of healthy volunteers are given a very low dose of a new drug in the first stage of a clinical trial.
- 8th June 2015A student counts 19 pulse beats in 10 seconds immediately after running. Calculate her heart rate in beats per minute.
- 9th June 2015State how many chromosomes are found in a normal human body cell, and how they are arranged.
- 10th June 2015Give the resolution of a burette that can be read to the nearest half of a small division.
- 11th June 2015Why is an atom electrically neutral?
- 12th June 2015State the law of conservation of mass.
- 13th June 2015In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.
- 14th June 2015State the condition, in terms of energy, that colliding particles must meet for a reaction to occur.
- 15th June 2015Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
- 16th June 2015Explain why carbon monoxide is dangerous even though it has no smell.
- 17th June 2015Why can no device be 100 percent efficient?
- 18th June 2015Why is melting described as a physical change?
- 19th June 2015A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
- 20th June 2015A wave has a period of 0.005 s. Calculate its frequency.
- 21st June 2015State the difference between a natural satellite and an artificial satellite, and give one example of each.
- 22nd June 2015Convert 0.05 mm into micrometres.
- 23rd June 2015State the function of the valves in the heart and in veins.
- 24th June 2015A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
- 25th June 2015Name the hormone that causes the liver to convert stored glycogen back into glucose.
- 26th June 2015The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
- 27th June 2015Classify crude oil as finite or renewable, and justify your answer.
- 28th June 2015Write the formula of calcium chloride and explain the ratio.
- 29th June 2015Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.
- 30th June 2015Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.