Daily Practice · GCSE Science
August 2019 - GCSE Science 5-a-day
Every GCSE Science sheet published in August 2019, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in August 2019
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 2019In the Haber process, N2(g) + 3H2(g) -> 2NH3(g), state the effect of decreasing the pressure on the position of equilibrium.
- 2nd August 2019A solution forms a green precipitate with sodium hydroxide solution. Which ion is present?
- 3rd August 2019Give the equation for wave speed and its units.
- 4th August 2019A component has a current of 5.0 A and a resistance of 8.0 ohm. Calculate the power dissipated using P = I^2 x R.
- 5th August 2019Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?
- 6th August 2019A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
- 7th August 2019A microwave oven uses electromagnetic waves with a wavelength of 0.12 m. Calculate the frequency of these waves (speed of light = 3 x 10^8 m/s).
- 8th August 2019Put the following in order of increasing distance from the Sun: Mars, Venus, Saturn, Earth.
- 9th August 2019Give one risk of stem cell treatment.
- 10th August 2019Why does a potometer measure water uptake rather than transpiration directly?
- 11th August 2019Why does the rate of photosynthesis fall at very high temperatures?
- 12th August 2019Name the three-domain system of classification, and name the scientist most associated with proposing it.
- 13th August 2019Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 14th August 2019State the four stages considered in a life cycle assessment.
- 15th August 2019Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 16th August 2019Define oxidation in terms of electrons.
- 17th August 2019State two units that the rate of a reaction can be measured in.
- 18th August 2019State the functional group found in all alcohols.
- 19th August 2019Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
- 20th August 2019A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 21st August 2019Name the change of state when a liquid becomes a gas throughout the liquid, at its boiling point.
- 22nd August 2019A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
- 23rd August 2019State what happens to the frequency of a wave when it is refracted as it passes into a different material.
- 24th August 2019State two factors that increase the size of the potential difference induced in a coil.
- 25th August 2019A student views a red blood cell at a magnification of x2000. The image of the cell measures 20 mm across. Calculate the real width of the cell, giving your answer in micrometres (um).
- 26th August 2019State two functions of bile.
- 27th August 2019What is an antigen?
- 28th August 2019Put these into the correct order for a reflex arc: motor neuron, receptor, effector, relay neuron, sensory neuron.
- 29th August 2019State one structural adaptation of a polar bear that helps it survive in a cold environment.
- 30th August 2019State the two main steps used to produce potable water from a fresh water source.
- 31st August 2019State the charge on a calcium ion (Group 2).