Daily Practice · GCSE Science
December 2015 - GCSE Science 5-a-day
Every GCSE Science sheet published in December 2015, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in December 2015
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 2015A wave travels from air into glass and slows down. State what happens to its direction, and explain why in terms of wavelength.
- 2nd December 2015State what a nebula is, and explain its role in the life cycle of a star.
- 3rd December 2015Why is a stain such as iodine used when preparing a slide?
- 4th December 2015Give two adaptations of a red blood cell.
- 5th December 2015Explain why anaerobic respiration releases much less energy per glucose molecule than aerobic respiration.
- 6th December 2015Name the hormone released by the adrenal glands that prepares the body for fight or flight.
- 7th December 2015Explain why a pyramid of biomass is never wider at the top than at the bottom.
- 8th December 2015State what is meant by sustainable development.
- 9th December 2015Define a covalent bond.
- 10th December 2015State the pH value of a neutral solution.
- 11th December 2015State the difference between a rechargeable cell and a non-rechargeable cell.
- 12th December 2015State the general formula of the alkenes.
- 13th December 2015Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
- 14th December 2015A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
- 15th December 2015Calculate the current drawn by a 1150 W kettle on a 230 V supply.
- 16th December 2015State the approximate radius of a nucleus compared with the radius of an atom.
- 17th December 2015A box of weight 120 N has a base area of 0.40 m^2. Calculate the pressure it exerts on the ground.
- 18th December 2015Explain why a current-carrying wire positioned exactly parallel to a magnetic field experiences no force.
- 19th December 2015State the difference between resolution and accuracy.
- 20th December 2015An amylase reaction is complete after 200 seconds. Calculate the rate of reaction using rate = 1000 / time.
- 21st December 2015How do bacteria make a person feel ill?
- 22nd December 2015Name the three parts common to every homeostatic control system.
- 23rd December 2015State one advantage and one disadvantage of selective breeding in farm animals.
- 24th December 2015An atom has atomic number 11 and mass number 23. State the number of protons.
- 25th December 2015On what property are elements ordered in the modern periodic table?
- 26th December 2015In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
- 27th December 2015State whether the combustion of methane is exothermic or endothermic.
- 28th December 2015In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
- 29th December 2015Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
- 30th December 2015State the equation for work done.
- 31st December 2015Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.