Daily Practice · GCSE Science
April 2004 - GCSE Science 5-a-day
Every GCSE Science sheet published in April 2004, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in April 2004
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 2004Which component of blood transports carbon dioxide, urea and hormones?
- 2nd April 2004Name the gas that is released as a product of photosynthesis.
- 3rd April 2004Name the gland often called the body's master gland.
- 4th April 2004A student places ten 1 m x 1 m quadrats at random across a school field of area 3000 m2 and counts a total of 45 dandelions across all ten quadrats. Estimate the total number of dandelions on the field.
- 5th April 2004Explain why potable water is not required to be chemically pure.
- 6th April 2004Why can metals conduct electricity when solid?
- 7th April 2004State the name given to a reaction in which a substance loses electrons.
- 8th April 2004State whether forming a new chemical bond requires energy or releases energy.
- 9th April 2004State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 10th April 2004Give two processes that removed carbon dioxide from the early atmosphere.
- 11th April 2004Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 12th April 2004What is the difference between alternating and direct current?
- 13th April 2004What observation showed that the atom is mostly empty space?
- 14th April 2004State the equation that links pressure, force and area.
- 15th April 2004In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
- 16th April 2004In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 17th April 2004Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 18th April 2004Why can HIV not be treated with antibiotics?
- 19th April 2004Name the gland that monitors and controls blood glucose concentration.
- 20th April 2004Explain why genetic engineering can introduce a new characteristic in a single generation, while selective breeding cannot.
- 21st April 2004Write the electronic structure of an atom with 12 electrons.
- 22nd April 2004State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
- 23rd April 2004Define the limiting reactant.
- 24th April 2004A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
- 25th April 2004State the two named reactants used in the Haber process.
- 26th April 2004Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
- 27th April 2004Why should you write down the equation even if you cannot finish the calculation?
- 28th April 2004State the UK mains supply frequency and typical potential difference.
- 29th April 2004What causes the pressure of a gas on the walls of its container?
- 30th April 2004A ball decelerates uniformly from 18 m/s to 0 m/s over a distance of 2.7 m while being caught. Using (final velocity)^2 = (initial velocity)^2 + 2 x acceleration x distance, calculate its deceleration.