Daily Practice · GCSE Science
April 2009 - GCSE Science 5-a-day
Every GCSE Science sheet published in April 2009, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in April 2009
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 2009State the value of the Avogadro constant and what it counts.
- 2nd April 2009State whether the combustion of methane is exothermic or endothermic.
- 3rd April 2009State the effect of increasing the temperature on the position of equilibrium of a reaction whose forward reaction is exothermic.
- 4th April 2009Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 5th April 2009Write the equation linking power, energy and time, and rearrange it for time.
- 6th April 2009Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
- 7th April 2009A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 8th April 2009A car's velocity increases from 8 m/s to 20 m/s over 4 seconds. Calculate its acceleration.
- 9th April 2009State one medical use of X-rays and one safety precaution taken when X-rays are used in a hospital.
- 10th April 2009State two uses of artificial satellites.
- 11th April 2009Define an undifferentiated cell.
- 12th April 2009Which tissue transports water and mineral ions from the roots?
- 13th April 2009Give three uses of the glucose produced in photosynthesis.
- 14th April 2009State one difference between selective breeding and genetic engineering.
- 15th April 2009A 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.
- 16th April 2009Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
- 17th April 2009Why do polymers have higher melting points than small molecules such as methane?
- 18th April 2009Complete: acid + metal carbonate gives ...
- 19th April 2009State the four factors that can increase the rate of a chemical reaction.
- 20th April 2009State the functional group found in all carboxylic acids.
- 21st April 2009Explain why the natural greenhouse effect is necessary for life on Earth, rather than being a purely harmful process.
- 22nd April 2009By what factor does kinetic energy increase if speed is doubled?
- 23rd April 2009State the correct SI unit for density.
- 24th April 2009Define the term 'half-life' of a radioactive isotope.
- 25th April 2009State the speed at which all electromagnetic waves travel through a vacuum.
- 26th April 2009A transformer has 500 turns on its primary coil and 2500 turns on its secondary coil. State, with a reason, whether this is a step-up or a step-down transformer.
- 27th April 2009Convert 0.02 mm into micrometres (um).
- 28th April 2009Describe the positive result of the Biuret test.
- 29th April 2009What is tested during preclinical testing?
- 30th April 2009Name the two parts of the central nervous system (CNS).