Daily Practice · GCSE Science
December 1999 - GCSE Science 5-a-day
Every GCSE Science sheet published in December 1999, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in December 1999
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st December 1999Name the process used to separate crude oil into fractions.
- 2nd December 1999Explain why the solvent level in the container must be below the pencil baseline.
- 3rd December 1999In the specific heat capacity practical, why is the block insulated?
- 4th December 1999Describe the current-potential difference graph for a filament lamp.
- 5th December 1999State the difference between irradiation and contamination.
- 6th December 1999State Newton's First Law of Motion.
- 7th December 1999Two bar magnets are placed with their north poles facing each other. State what happens to the magnets.
- 8th December 1999State what is meant by red-shift.
- 9th December 1999Name the process that moves substances against a concentration gradient.
- 10th December 1999State one way that pathogens can be spread from person to person.
- 11th December 1999Explain why breathing rate and breathing depth both increase during exercise.
- 12th December 1999In pea plants, purple flower colour (allele H) is dominant over white flower colour (allele h). State the phenotype of a plant with genotype Hh.
- 13th December 1999Why is the burette rinsed with the solution it is going to contain rather than with water?
- 14th December 1999State the relative mass and relative charge of a neutron.
- 15th December 1999Calculate the Mr of Ca(OH)2. (Ca = 40, O = 16, H = 1)
- 16th December 1999State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
- 17th December 1999Explain how a catalyst increases the rate of a reaction without being used up.
- 18th December 1999Which reagent is added, and in what colour change, to test for chlorine gas?
- 19th December 1999Explain how solid carbon particulates released by combustion can cause global dimming.
- 20th December 1999A lamp is supplied with 60 J and transfers 6 J as light. Calculate its efficiency as a percentage.
- 21st December 1999Define specific latent heat of fusion.
- 22nd December 1999State whether friction is a contact force or a non-contact force.
- 23rd December 1999Give one everyday example of a transverse wave and one everyday example of a longitudinal wave.
- 24th December 1999State what happens to the orbital speed needed for a stable orbit as the orbital radius increases.
- 25th December 1999Give the equation linking magnification, image size and real size.
- 26th December 1999Give one advantage and one disadvantage of a stent.
- 27th December 1999Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 28th December 1999Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 29th December 1999State what is meant by the term ecosystem.
- 30th December 1999Give one reason distillation of seawater requires a large energy input.
- 31st December 1999Describe metallic bonding.