Daily Practice · GCSE Science
December 1979 5-a-day
Every sheet in December 1979
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 1979State the difference between an antibiotic and a painkiller.
- 2nd December 1979Name the chemical released at a synapse that carries the signal across the gap.
- 3rd December 1979Explain why deforestation to create land for cattle grazing can reduce biodiversity.
- 4th December 1979Name two methods of desalinating seawater.
- 5th December 1979Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 6th December 1979Convert 250 cubic centimetres into cubic decimetres.
- 7th December 1979A student heats solid copper carbonate strongly in a test tube, and it breaks down into copper oxide and carbon dioxide. Heating must be continued throughout the reaction for it to keep going. State whether this thermal decomposition reaction is exothermic or endothermic, and explain your reasoning.
- 8th December 1979State two products, other than water, that can be formed during the incomplete combustion of a hydrocarbon.
- 9th December 1979Write the formula for calculating an Rf value.
- 10th December 1979Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
- 11th December 1979What happens to the total resistance when a second resistor is added in parallel, and why?
- 12th December 1979What happens inside the nucleus when a beta particle is emitted?
- 13th December 1979Explain why a larger vehicle mass increases braking distance.
- 14th December 1979State the type of force that always acts between an induced magnet and the magnet that induced it.
- 15th December 1979Name the model of the origin of the universe that is supported by red-shift observations.
- 16th December 1979State three factors that increase the rate of diffusion.
- 17th December 1979Describe how phagocytes destroy pathogens in the body.
- 18th December 1979Define oxygen debt.
- 19th December 1979Explain one benefit of the Human Genome Project.
- 20th December 1979What does 'concordant' mean when applied to titres?
- 21st December 1979What did the alpha scattering experiment show that the plum pudding model could not explain?
- 22nd December 1979Magnesium is burned in an open crucible and the mass increases. Explain why.
- 23rd December 1979Explain why solid sodium chloride does not conduct electricity, but molten sodium chloride does.
- 24th December 1979In the gas-volume required practical measuring how concentration affects rate, state one variable that should be controlled.
- 25th December 1979Describe the result of the test for carbon dioxide.
- 26th December 1979Give one piece of evidence used to link human activity to recent climate change.
- 27th December 1979Give one advantage and one disadvantage of wind power.
- 28th December 1979Why does the temperature stay constant while a substance boils?
- 29th December 1979Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 30th December 1979A wave travels from air into glass and slows down. State what happens to its direction, and explain why in terms of wavelength.
- 31st December 1979State what a nebula is, and explain its role in the life cycle of a star.