Daily Practice · GCSE Science
February 2017 - GCSE Science 5-a-day
Every GCSE Science sheet published in February 2017, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in February 2017
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 2017Why does taking repeat readings and calculating a mean improve the data?
- 2nd February 2017Name the organ system responsible for breaking food down into small, soluble molecules.
- 3rd February 2017State two ways measles is prevented from spreading.
- 4th February 2017State one difference between nervous and hormonal coordination.
- 5th February 2017State what is meant by a selection pressure.
- 6th February 2017An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 7th February 2017Give two observations when lithium is added to water.
- 8th February 2017State the value of the Avogadro constant and what it counts.
- 9th February 2017Give one everyday example of an endothermic process.
- 10th February 2017State Le Chatelier's principle in your own words.
- 11th February 2017Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 12th February 2017Write the equation linking power, energy and time, and rearrange it for time.
- 13th February 2017A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 14th February 2017A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 15th February 2017On a velocity-time graph, what does the area between the line and the time axis represent?
- 16th February 2017State the speed of all electromagnetic waves travelling through a vacuum.
- 17th February 2017State the name of the force that keeps a satellite in orbit around the Earth.
- 18th February 2017Define an undifferentiated cell.
- 19th February 2017Which tissue transports water and mineral ions from the roots?
- 20th February 2017Give three uses of the glucose produced in photosynthesis.
- 21st February 2017A plant grown in the shade is shorter than a genetically identical plant of the same species grown in full sunlight. State whether this difference is genetic variation, environmental variation, or both.
- 22nd February 2017A 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.
- 23rd February 2017Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
- 24th February 2017Why do polymers have higher melting points than small molecules such as methane?
- 25th February 2017Complete: acid + metal carbonate gives ...
- 26th February 2017State the four factors that can increase the rate of a chemical reaction.
- 27th February 2017Name the small molecule typically released as a by-product during condensation polymerisation.
- 28th February 2017Explain, in terms of gas molecules, why methane and water vapour, as well as carbon dioxide, are described as greenhouse gases.