Daily Practice · GCSE Science
August 1978 5-a-day
Every sheet in August 1978
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st August 1978Calculate the concentration in moles per cubic decimetre of a solution containing 0.5 mol in 250 cubic centimetres.
- 2nd August 1978State the energy transfer that occurs during an endothermic reaction.
- 3rd August 1978Name the two industrial methods of cracking.
- 4th August 1978A sample produces only one spot when run in three different solvents. What does this suggest about the sample?
- 5th August 1978Why should a line of best fit be drawn rather than joining the plotted points?
- 6th August 1978In a parallel circuit, how do the branch currents relate to the total current?
- 7th August 1978State the approximate radius of an atom.
- 8th August 1978Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
- 9th August 1978State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
- 10th August 1978State what red-shift shows about the motion of most distant galaxies.
- 11th August 1978Give one adaptation of a root hair cell for absorbing mineral ions.
- 12th August 1978Describe how phagocytes destroy pathogens in the body.
- 13th August 1978State the word equation for aerobic respiration.
- 14th August 1978State one ethical concern raised by embryo screening.
- 15th August 1978Why is a polystyrene cup with a lid used in energy-change experiments?
- 16th August 1978Write the electronic structure of a magnesium atom (12 electrons).
- 17th August 1978A student measures the mass of a beaker of hydrochloric acid and marble chips as they react and finds it falls. Explain why.
- 18th August 1978State the name given to the negative electrode in electrolysis.
- 19th August 1978Explain why using a light sensor and data logger is more reliable than timing by eye in the disappearing cross practical.
- 20th August 1978Name the gas that relights a glowing splint.
- 21st August 1978Name two gases that dissolve in atmospheric water droplets to cause acid rain.
- 22nd August 1978Define power and give its unit.
- 23rd August 1978Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
- 24th August 1978Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 25th August 1978Explain, in terms of particle motion, why a wave can transfer energy without transferring matter.
- 26th August 1978Name the region of the Solar System where most asteroids are found.
- 27th August 1978Give one advantage of a light microscope over an electron microscope.
- 28th August 1978Name the blood vessel that carries deoxygenated blood from the heart to the lungs.
- 29th August 1978Name the gas that is released as a product of photosynthesis.
- 30th August 1978A person's blood glucose concentration is 4.8 mmol/dm^3 before breakfast and 7.2 mmol/dm^3 after breakfast. Calculate the increase in blood glucose concentration.
- 31st August 1978Thermus 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.