Daily Practice · GCSE Science
November 1986 5-a-day
Every sheet in November 1986
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1986Define the term allele.
- 2nd November 1986State one method used to try to maintain biodiversity.
- 3rd November 1986Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.
- 4th November 1986Why is graphite soft and slippery?
- 5th November 1986Explain the difference between a strong acid and a concentrated acid.
- 6th November 1986A reaction between calcium carbonate and hydrochloric acid produces 72 cm3 of carbon dioxide gas in 30 seconds. Calculate the mean rate of reaction.
- 7th November 1986Explain why carboxylic acids are described as 'weak acids'.
- 8th November 1986Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 9th November 1986Name four energy stores.
- 10th November 1986A 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 November 1986State one source of natural background radiation and one source of artificial (man-made) background radiation.
- 12th November 1986Explain why ultraviolet radiation can be harmful to human skin.
- 13th November 1986State two ways of inducing a potential difference across a conductor using a magnetic field.
- 14th November 1986State one structure found in a bacterial cell but not in an animal cell.
- 15th November 1986What is an enzyme?
- 16th November 1986Describe phagocytosis.
- 17th November 1986A 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 November 1986Name the equipment used to measure the abundance of a small plant species within a sample area.
- 19th November 1986Define a finite resource, giving one example.
- 20th November 1986State one reason why simple covalent substances such as chlorine have low melting points.
- 21st November 1986Give the formula for percentage yield.
- 22nd November 1986A student reacts excess zinc powder with 25 cm3 of copper sulfate solution in a polystyrene cup. The starting temperature is 21.0 degrees C and the maximum temperature reached is 58.5 degrees C. Calculate the temperature change.
- 23rd November 1986Define the term 'hydrocarbon'.
- 24th November 1986State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
- 25th November 1986Distinguish repeatability from reproducibility.
- 26th November 1986How does the resistance of a thermistor change as it gets hotter?
- 27th November 1986What is an alpha particle made of?
- 28th November 1986A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
- 29th November 1986A 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 November 1986Explain 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.