Daily Practice · GCSE Science
May 2005 - GCSE Science 5-a-day
Every GCSE Science sheet published in May 2005, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in May 2005
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 2005Explain why breathing rate and breathing depth both increase during exercise.
- 2nd May 2005In pea plants, purple flower colour (allele H) is dominant over white flower colour (allele h). State the phenotype of a plant with genotype Hh.
- 3rd May 2005Why is a polystyrene cup with a lid used in energy-change experiments?
- 4th May 2005Write the electronic structure of a magnesium atom (12 electrons).
- 5th May 2005A student measures the mass of a beaker of hydrochloric acid and marble chips as they react and finds it falls. Explain why.
- 6th May 2005State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
- 7th May 2005Explain how a catalyst increases the rate of a reaction without being used up.
- 8th May 2005Name the gas that relights a glowing splint.
- 9th May 2005Name two gases that dissolve in atmospheric water droplets to cause acid rain.
- 10th May 2005Define power and give its unit.
- 11th May 2005Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 12th May 2005State whether friction is a contact force or a non-contact force.
- 13th May 2005Give one everyday example of a transverse wave and one everyday example of a longitudinal wave.
- 14th May 2005State what happens to the orbital speed needed for a stable orbit as the orbital radius increases.
- 15th May 2005Give one advantage of a light microscope over an electron microscope.
- 16th May 2005Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 17th May 2005Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 18th May 2005Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 19th May 2005Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.
- 20th May 2005Give one reason distillation of seawater requires a large energy input.
- 21st May 2005Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 22nd May 2005A 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.
- 23rd May 2005State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 24th May 2005Name the alkene with the molecular formula C4H8.
- 25th May 2005Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
- 26th May 2005Name the energy store associated with a moving car.
- 27th May 2005Give the colour and function of the earth wire.
- 28th May 2005What observation showed the nucleus is positively charged and very small?
- 29th May 2005A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 30th May 2005State two ways of increasing the force produced by a motor effect setup, for a wire of fixed length at a fixed angle to the field.
- 31st May 2005A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.