Daily Practice · GCSE Science
January 2023 - GCSE Science 5-a-day
Every GCSE Science sheet published in January 2023, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in January 2023
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2023Name four energy stores.
- 2nd January 2023Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 3rd January 2023State one source of natural background radiation and one source of artificial (man-made) background radiation.
- 4th January 2023A radio wave has a wavelength of 3 m. Calculate its frequency, given that all electromagnetic waves travel at 3 x 10^8 m/s in a vacuum.
- 5th January 2023Explain why electricity is transmitted through the National Grid at a very high voltage rather than at the voltage used in homes.
- 6th January 2023Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 7th January 2023What is an enzyme?
- 8th January 2023Describe phagocytosis.
- 9th January 2023Name the chemical released at a synapse that carries the signal across the gap.
- 10th January 2023Explain why deforestation to create land for cattle grazing can reduce biodiversity.
- 11th January 2023Name two methods of desalinating seawater.
- 12th January 2023Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 13th January 2023Give the formula for percentage yield.
- 14th January 2023A 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.
- 15th January 2023State two products, other than water, that can be formed during the incomplete combustion of a hydrocarbon.
- 16th January 2023State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
- 17th January 2023Distinguish repeatability from reproducibility.
- 18th January 2023How does the resistance of a thermistor change as it gets hotter?
- 19th January 2023What is an alpha particle made of?
- 20th January 2023Explain why a larger vehicle mass increases braking distance.
- 21st January 2023State the type of force that always acts between an induced magnet and the magnet that induced it.
- 22nd January 2023Name the model of the origin of the universe that is supported by red-shift observations.
- 23rd January 2023Explain why a plant cell placed in pure water does not burst.
- 24th January 2023Describe how phagocytes destroy pathogens in the body.
- 25th January 2023Define oxygen debt.
- 26th January 2023Explain one benefit of the Human Genome Project.
- 27th January 2023In the rate experiment where a cross disappears, why is the result subjective?
- 28th January 2023An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
- 29th January 2023Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
- 30th January 2023Explain why solid sodium chloride does not conduct electricity, but molten sodium chloride does.
- 31st January 2023In the gas-volume required practical measuring how concentration affects rate, state one variable that should be controlled.