Daily Practice · GCSE Science
March 2019 - GCSE Science 5-a-day
Every GCSE Science sheet published in March 2019, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in March 2019
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2019Define the term allele.
- 2nd March 2019State one human activity that reduces the amount of land available for other organisms.
- 3rd March 2019State the two substances that must both be present for iron to rust.
- 4th March 2019State the size range of a nanoparticle.
- 5th March 2019Why is aluminium extracted by electrolysis rather than by reduction with carbon?
- 6th March 2019Explain, using collision theory, why increasing the concentration of a reactant in solution increases the rate of a reaction.
- 7th March 2019Explain why carboxylic acids are described as 'weak acids'.
- 8th March 2019Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 9th March 2019What happens to the energy described as 'wasted' in a transfer?
- 10th March 2019A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 11th March 2019Explain the difference between irradiation and contamination.
- 12th March 2019Explain why ultraviolet radiation can be harmful to human skin.
- 13th March 2019State two ways of inducing a potential difference across a conductor using a magnetic field.
- 14th March 2019State one structure found in a bacterial cell but not in an animal cell.
- 15th March 2019Name the products of protein digestion.
- 16th March 2019State the difference between an antibiotic and a painkiller.
- 17th March 2019A ruler is released and falls 20 cm before being caught. Using distance = 0.5 x g x time^2 with g = 9.8 m/s^2, calculate the reaction time, to 3 significant figures.
- 18th March 2019Name the equipment used to measure the abundance of a small plant species within a sample area.
- 19th March 2019Define a finite resource, giving one example.
- 20th March 2019State one reason why simple covalent substances such as chlorine have low melting points.
- 21st March 2019Convert 250 cubic centimetres into cubic decimetres.
- 22nd March 2019A 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.
- 23rd March 2019Define the term 'hydrocarbon'.
- 24th March 2019Write the formula for calculating an Rf value.
- 25th March 2019Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
- 26th March 2019What happens to the total resistance when a second resistor is added in parallel, and why?
- 27th March 2019What happens inside the nucleus when a beta particle is emitted?
- 28th March 2019A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
- 29th March 2019A student wraps a coil of insulated wire around an iron nail and connects it to a battery. Name the device this creates, and state one way to increase its magnetic field strength.
- 30th March 2019Explain why red-shift observations support the idea that the universe is expanding, rather than Earth simply being at the centre of the universe with everything moving away from it.
- 31st March 2019State three factors that increase the rate of diffusion.