Daily Practice · GCSE Science
January 2008 - GCSE Science 5-a-day
Every GCSE Science sheet published in January 2008, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in January 2008
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2008In a chromatography experiment, a dye spot travels 4.5 cm and the solvent front travels 6.0 cm. Calculate its Rf value.
- 2nd January 2008Define the resolution of a measuring instrument.
- 3rd January 2008Two 4 ohm resistors are connected in series. Calculate the total resistance.
- 4th January 2008Which type of radiation is stopped by a sheet of paper?
- 5th January 2008A skateboarder of mass 55 kg moving at 4 m/s collides with and grabs onto a stationary shopping trolley of mass 20 kg, and they move off together. Calculate their combined velocity immediately after the collision.
- 6th January 2008Describe the shape of the magnetic field produced around a long straight wire carrying a current.
- 7th January 2008State how the amount of red-shift is related to a galaxy's distance from Earth.
- 8th January 2008Why does active transport require energy?
- 9th January 2008State one way that pathogens can be spread from person to person.
- 10th January 2008State the word equation for anaerobic respiration in human muscle cells.
- 11th January 2008State whether cystic fibrosis is caused by a dominant or a recessive allele.
- 12th January 2008Name one way to make a rate of reaction experiment more valid rather than simply more precise.
- 13th January 2008Define an isotope.
- 14th January 2008A sealed flask containing 12.0 g of reactants is shaken and a reaction occurs. What is the total mass afterwards?
- 15th January 2008Aqueous copper sulfate solution is electrolysed using inert graphite electrodes. State the products formed at (a) the cathode and (b) the anode, giving a reason for each.
- 16th January 2008In the disappearing cross required practical, state the dependent variable that is measured.
- 17th January 2008State the difference between a pure substance and a formulation.
- 18th January 2008Explain why burning a fuel can produce nitrogen oxides even if the fuel itself contains no nitrogen.
- 19th January 2008Name three renewable energy resources.
- 20th January 2008State the equation for density.
- 21st January 2008State whether friction is a contact force or a non-contact force.
- 22nd January 2008A water wave has a wavelength of 0.4 m and a frequency of 2.5 Hz. Calculate its speed.
- 23rd January 2008Explain how elements heavier than iron, such as gold, are created and distributed through the universe.
- 24th January 2008Why is a stain such as iodine used when preparing a slide?
- 25th January 2008Give two adaptations of a red blood cell.
- 26th January 2008Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 27th January 2008State the type of diabetes in which the pancreas produces little or no insulin.
- 28th January 2008Explain why a pyramid of biomass is never wider at the top than at the bottom.
- 29th January 2008Give one reason distillation of seawater requires a large energy input.
- 30th January 2008Define a covalent bond.
- 31st January 2008A 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.