Daily Practice · GCSE Science
November 1998 - GCSE Science 5-a-day
Every sheet in November 1998
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1998Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 2nd November 1998Explain why increasing temperature increases the rate of a reaction, referring to both the frequency and the energy of collisions.
- 3rd November 1998Describe the result of the test for carbon dioxide.
- 4th November 1998Give one piece of evidence used to link human activity to recent climate change.
- 5th November 1998Give one advantage and one disadvantage of wind power.
- 6th November 1998Why does the temperature stay constant while a substance boils?
- 7th November 1998Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 8th November 1998Sound waves travel through a steel rail at approximately 5900 m/s. A sound wave sent along the rail has a frequency of 2950 Hz. Calculate its wavelength.
- 9th November 1998State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 10th November 1998Where is the DNA found in a bacterial cell?
- 11th November 1998Name the substance in red blood cells that binds oxygen.
- 12th November 1998Name the gas that is released as a product of photosynthesis.
- 13th November 1998Name the gland often called the body's master gland.
- 14th November 1998In a grassland food chain, the biomass of grass available is 8400 kg and the biomass transferred to the rabbits that eat it is 940 kg. Calculate the percentage efficiency of biomass transfer from grass to rabbits, to 3 significant figures.
- 15th November 1998Explain why potable water is not required to be chemically pure.
- 16th November 1998Give the charge on an ion formed by a group 2 element.
- 17th November 1998State the name given to a reaction in which a substance loses electrons.
- 18th November 1998State one factor that affects the size of the voltage produced by a chemical cell.
- 19th November 1998State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 20th November 1998Give two processes that removed carbon dioxide from the early atmosphere.
- 21st November 1998Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 22nd November 1998Why is the live wire dangerous even when a device is switched off?
- 23rd November 1998Describe the plum pudding model.
- 24th November 1998State the equation that links pressure, force and area.
- 25th November 1998In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
- 26th November 1998Name the apparatus used to estimate the population of a slow-moving or non-moving species in a field.
- 27th November 1998Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 28th November 1998Define a communicable disease.
- 29th November 1998Name the gland that monitors and controls blood glucose concentration.
- 30th November 1998Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.