Daily Practice · GCSE Science
December 1972 5-a-day
Every sheet in December 1972
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 1972State one way in which high biodiversity benefits an ecosystem.
- 2nd December 1972Explain how painting an iron gate helps prevent it from rusting.
- 3rd December 1972Why can an ionic solid not conduct electricity?
- 4th December 1972Name the salt made from zinc oxide and nitric acid.
- 5th December 1972State what is meant by a catalyst.
- 6th December 1972State the functional group found in all alcohols.
- 7th December 1972Explain why the natural greenhouse effect is necessary for life on Earth, rather than being a purely harmful process.
- 8th December 1972Define specific heat capacity.
- 9th December 1972State the correct SI unit for density.
- 10th December 1972State the number of protons and the number of neutrons in an alpha particle.
- 11th December 1972State what happens to the frequency of a wave when it is refracted as it passes into a different material.
- 12th December 1972State two factors that increase the size of the potential difference induced in a coil.
- 13th December 1972Convert 0.02 mm into micrometres (um).
- 14th December 1972Why does a food test for sugars need a water bath?
- 15th December 1972Explain what is meant by a double blind trial.
- 16th December 1972Put these into the correct order for a reflex arc: motor neuron, receptor, effector, relay neuron, sensory neuron.
- 17th December 1972State one structural adaptation of a polar bear that helps it survive in a cold environment.
- 18th December 1972State one benefit of recycling metal rather than extracting new metal from its ore.
- 19th December 1972Name the three types of strong chemical bonding.
- 20th December 1972Give the formula for atom economy.
- 21st December 1972Explain, in terms of the reaction pathway, why adding a catalyst increases the rate of a reaction without changing the overall energy change of the reaction.
- 22nd December 1972Name the process used to separate crude oil into fractions.
- 23rd December 1972State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
- 24th December 1972How is the uncertainty in a set of repeated readings usually estimated?
- 25th December 1972Define electric current.
- 26th December 1972A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
- 27th December 1972State Newton's First Law of Motion.
- 28th December 1972Two bar magnets are placed with their north poles facing each other. State what happens to the magnets.
- 29th December 1972State what is meant by red-shift.
- 30th December 1972Calculate the surface area to volume ratio of a cube of side 2 cm.
- 31st December 1972State one way that pathogens can be spread from person to person.