Daily Practice · GCSE Science
March 2020 - GCSE Science 5-a-day
Every GCSE Science sheet published in March 2020, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in March 2020
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 2020A tangent drawn to a volume-time graph at 15 seconds passes through the points (5 s, 6 cm3) and (25 s, 66 cm3). Calculate the rate of reaction at 15 seconds.
- 2nd March 2020Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
- 3rd March 2020Explain why carbon monoxide is dangerous even though it has no smell.
- 4th March 2020Why can no device be 100 percent efficient?
- 5th March 2020Why is melting described as a physical change?
- 6th March 2020State whether friction is a contact force or a non-contact force.
- 7th March 2020State the difference between a transverse wave and a longitudinal wave.
- 8th March 2020Name the force that keeps the planets in orbit around the Sun.
- 9th March 2020Convert 0.05 mm into micrometres.
- 10th March 2020State the function of the valves in the heart and in veins.
- 11th March 2020Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 12th March 2020Explain why sweating cools the body down.
- 13th March 2020The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
- 14th March 2020Give one reason distillation of seawater requires a large energy input.
- 15th March 2020Write the formula of calcium chloride and explain the ratio.
- 16th March 2020A student reacts 2.4 g of magnesium with excess dilute hydrochloric acid: Mg + 2HCl -> MgCl2 + H2. Relative atomic mass of Mg = 24. Calculate the number of moles of hydrogen gas produced.
- 17th March 2020Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
- 18th March 2020Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
- 19th March 2020Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
- 20th March 2020Name the energy store associated with a moving car.
- 21st March 2020Give the equation linking energy transferred, charge flow and potential difference.
- 22nd March 2020Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
- 23rd March 2020A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
- 24th March 2020A rectangular coil carrying a current is placed in a magnetic field, with its two long sides parallel to each other. Explain why the coil rotates rather than moving in a straight line.
- 25th March 2020Why does taking repeat readings and calculating a mean improve the data?
- 26th March 2020State the type of large biological molecule that all enzymes are made from.
- 27th March 2020State two ways measles is prevented from spreading.
- 28th March 2020Define homeostasis.
- 29th March 2020Give one example of variation that is caused purely by the environment rather than by genes.
- 30th March 2020A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.
- 31st March 2020Give two observations when lithium is added to water.