Daily Practice · GCSE Science
July 2015 - GCSE Science 5-a-day
Every GCSE Science sheet published in July 2015, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in July 2015
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 2015State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 2nd July 2015Give two human activities that increase the amount of greenhouse gases in the atmosphere.
- 3rd July 2015A 5.0 kg object is lifted 3.0 m. Calculate its gain in gravitational potential energy (g = 9.8 N/kg).
- 4th July 2015Give the equation linking energy transferred, charge flow and potential difference.
- 5th July 2015Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
- 6th July 2015Explain why a rucksack with wide, padded straps is more comfortable to carry than one with thin straps, for the same load.
- 7th July 2015State the three factors needed for a current-carrying wire to experience a force due to the motor effect.
- 8th July 2015Why does taking repeat readings and calculating a mean improve the data?
- 9th July 2015State two ways that bile aids the digestion of fats.
- 10th July 2015State two ways measles is prevented from spreading.
- 11th July 2015A patient's core body temperature has fallen to 35 degrees Celsius. State two physical responses their body makes to raise it back toward normal.
- 12th July 2015Explain one reason it took many years for Darwin's theory of evolution by natural selection to become widely accepted.
- 13th July 2015State the relative charge of a neutron.
- 14th July 2015Give two observations when lithium is added to water.
- 15th July 2015State the value of the Avogadro constant and what it counts.
- 16th July 2015A reaction profile shows the reactants at 150 kJ and the peak (activation energy point) at 195 kJ. Calculate the activation energy.
- 17th July 2015State what is meant by dynamic equilibrium.
- 18th July 2015Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 19th July 2015Write the equation linking power, energy and time, and rearrange it for time.
- 20th July 2015A 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.
- 21st July 2015A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 22nd July 2015A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 23rd July 2015State the seven regions of the electromagnetic spectrum in order of increasing frequency.
- 24th July 2015State what provides the centripetal force that keeps a planet in orbit around the Sun.
- 25th July 2015Define an undifferentiated cell.
- 26th July 2015Which tissue transports water and mineral ions from the roots?
- 27th July 2015Give three uses of the glucose produced in photosynthesis.
- 28th July 2015Define the term allele.
- 29th July 2015A peat bog covered an area of 850 hectares in 2015. By 2025, drainage for farmland had reduced the peat bog to 680 hectares. Calculate the percentage decrease in the area of the peat bog.
- 30th July 2015Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
- 31st July 2015Why do polymers have higher melting points than small molecules such as methane?