Daily Practice · GCSE Science
December 2008 - GCSE Science 5-a-day
Every GCSE Science sheet published in December 2008, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in December 2008
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 2008Explain why a plant cell placed in pure water does not burst.
- 2nd December 2008Name the vector that spreads the protist pathogen that causes malaria.
- 3rd December 2008Explain why breathing rate and breathing depth both increase during exercise.
- 4th December 2008In pea plants, purple flower colour (allele H) is dominant over white flower colour (allele h). State the phenotype of a plant with genotype Hh.
- 5th December 2008In the rate experiment where a cross disappears, why is the result subjective?
- 6th December 2008An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
- 7th December 2008Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
- 8th December 2008State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
- 9th December 2008Explain how a catalyst increases the rate of a reaction without being used up.
- 10th December 2008A solid gives a lilac flame test. Name the metal ion present.
- 11th December 2008Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
- 12th December 2008Give the equation for efficiency in terms of energy.
- 13th December 2008Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.
- 14th December 2008A gardener pushes a mower with a force of 60 N through a distance of 8.0 m. Calculate the work done. Use W = F x s.
- 15th December 2008Give one everyday example of a transverse wave and one everyday example of a longitudinal wave.
- 16th December 2008State what happens to the orbital speed needed for a stable orbit as the orbital radius increases.
- 17th December 2008State the function of the mitochondria.
- 18th December 2008Which component of blood transports carbon dioxide, urea and hormones?
- 19th December 2008Name the organelle in a plant cell where photosynthesis takes place.
- 20th December 2008Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 21st December 2008A 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.
- 22nd December 2008Name one method used to sterilise fresh water during the production of potable water.
- 23rd December 2008Why can metals conduct electricity when solid?
- 24th December 2008Write the word equation for the reaction between zinc and hydrochloric acid.
- 25th December 2008State whether forming a new chemical bond requires energy or releases energy.
- 26th December 2008Name the alkene with the molecular formula C4H8.
- 27th December 2008State the approximate percentage of nitrogen in today's atmosphere.
- 28th December 2008A spring is compressed. Which energy store increases?
- 29th December 2008What is the difference between alternating and direct current?
- 30th December 2008What observation showed that the atom is mostly empty space?
- 31st December 2008A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.