Daily Practice · GCSE Science
May 1994 - GCSE Science 5-a-day
Every sheet in May 1994
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1994Define oxygen debt.
- 2nd May 1994Explain one benefit of the Human Genome Project.
- 3rd May 1994Why is a polystyrene cup with a lid used in energy-change experiments?
- 4th May 1994Write the electronic structure of a magnesium atom (12 electrons).
- 5th May 1994A student measures the mass of a beaker of hydrochloric acid and marble chips as they react and finds it falls. Explain why.
- 6th May 1994Explain why solid sodium chloride does not conduct electricity, but molten sodium chloride does.
- 7th May 1994In the gas-volume required practical measuring how concentration affects rate, state one variable that should be controlled.
- 8th May 1994Name the gas that relights a glowing splint.
- 9th May 1994Name two gases that dissolve in atmospheric water droplets to cause acid rain.
- 10th May 1994Define power and give its unit.
- 11th May 1994Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 12th May 1994A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
- 13th May 1994A wave travels from air into glass and slows down. State what happens to its direction, and explain why in terms of wavelength.
- 14th May 1994State what a nebula is, and explain its role in the life cycle of a star.
- 15th May 1994Give one advantage of a light microscope over an electron microscope.
- 16th May 1994Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 17th May 1994Explain why anaerobic respiration releases much less energy per glucose molecule than aerobic respiration.
- 18th May 1994Name the hormone released by the adrenal glands that prepares the body for fight or flight.
- 19th May 1994Thermus 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 1994State what is meant by sustainable development.
- 21st May 1994Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 22nd May 1994State the pH value of a neutral solution.
- 23rd May 1994State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 24th May 1994State the general formula of the alkenes.
- 25th May 1994Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
- 26th May 1994A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
- 27th May 1994Give the colour and function of the earth wire.
- 28th May 1994What observation showed the nucleus is positively charged and very small?
- 29th May 1994A box of weight 120 N has a base area of 0.40 m^2. Calculate the pressure it exerts on the ground.
- 30th May 1994Explain why a current-carrying wire positioned exactly parallel to a magnetic field experiences no force.
- 31st May 1994A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.