Daily Practice · GCSE Science
February 1955 5-a-day
Every sheet in February 1955
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1955Name the organelle in a plant cell where photosynthesis takes place.
- 2nd February 1955Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 3rd February 1955Thermus aquaticus is a species of bacterium that lives in hot springs at temperatures that would kill most other organisms. State the name given to an organism that is adapted to survive in such extreme conditions.
- 4th February 1955Name one method used to sterilise fresh water during the production of potable water.
- 5th February 1955Why can an ionic compound conduct electricity when molten or dissolved but not when solid?
- 6th February 1955Write the word equation for the reaction between zinc and hydrochloric acid.
- 7th February 1955State the only substance produced when a hydrogen fuel cell reacts pure hydrogen with pure oxygen.
- 8th February 1955Name the alkene with the molecular formula C4H8.
- 9th February 1955State the approximate percentage of nitrogen in today's atmosphere.
- 10th February 1955A spring is compressed. Which energy store increases?
- 11th February 1955Give the colour and function of the earth wire.
- 12th February 1955What observation showed the nucleus is positively charged and very small?
- 13th February 1955A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 14th February 1955State two ways of increasing the force produced by a motor effect setup, for a wire of fixed length at a fixed angle to the field.
- 15th February 1955A student measures 24 cubic centimetres of gas in 3 minutes. Calculate the rate.
- 16th February 1955Name the organ system responsible for breaking food down into small, soluble molecules.
- 17th February 1955Give one way of reducing the spread of malaria.
- 18th February 1955Name the hormone released when blood glucose concentration is too high, and state its overall effect.
- 19th February 1955Define mutation.
- 20th February 1955An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 21st February 1955Why do elements in the same group have similar chemical properties?
- 22nd February 1955Why is the amount of product directly proportional to the amount of limiting reactant?
- 23rd February 1955Give one everyday example of an endothermic process.
- 24th February 1955The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 25th February 1955A solution forms a green precipitate with sodium hydroxide solution. Which ion is present?
- 26th February 1955Give the equation for wave speed and its units.
- 27th February 1955A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 28th February 1955Why does reducing the volume of a gas increase the pressure even though the molecules do not speed up?