Daily Practice · GCSE Science
January 2006 - GCSE Science 5-a-day
Every GCSE Science sheet published in January 2006, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in January 2006
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2006Explain why a small number of healthy volunteers are given a very low dose of a new drug in the first stage of a clinical trial.
- 2nd January 2006A yeast culture respires without oxygen. Name the two products of this reaction, and name one industrial process that relies on it.
- 3rd January 2006A man who is a known carrier of cystic fibrosis (Ff) has children with a woman who has been confirmed to carry no cystic fibrosis allele at all (FF). Explain why none of their children can have cystic fibrosis.
- 4th January 2006Give the resolution of a burette that can be read to the nearest half of a small division.
- 5th January 2006Why is an atom electrically neutral?
- 6th January 2006State the law of conservation of mass.
- 7th January 2006Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 8th January 2006Explain why increasing temperature increases the rate of a reaction, referring to both the frequency and the energy of collisions.
- 9th January 2006Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
- 10th January 2006Explain why carbon monoxide is dangerous even though it has no smell.
- 11th January 2006Why can no device be 100 percent efficient?
- 12th January 2006Why is melting described as a physical change?
- 13th January 2006A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
- 14th January 2006Sound 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.
- 15th January 2006State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 16th January 2006Convert 0.05 mm into micrometres.
- 17th January 2006State the function of the valves in the heart and in veins.
- 18th January 2006A lamp is placed 10 cm from pondweed. Calculate the relative light intensity using relative light intensity = 1 / distance^2.
- 19th January 2006Name the gland often called the body's master gland.
- 20th January 2006The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
- 21st January 2006Classify crude oil as finite or renewable, and justify your answer.
- 22nd January 2006Write the formula of calcium chloride and explain the ratio.
- 23rd January 2006Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.
- 24th January 2006Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
- 25th January 2006State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 26th January 2006Give two human activities that increase the amount of greenhouse gases in the atmosphere.
- 27th January 2006A 5.0 kg object is lifted 3.0 m. Calculate its gain in gravitational potential energy (g = 9.8 N/kg).
- 28th January 2006Give the equation linking energy transferred, charge flow and potential difference.
- 29th January 2006Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
- 30th January 2006State the equation that links pressure, force and area.
- 31st January 2006In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.