Daily Practice · GCSE Science
April 1971 5-a-day
Every sheet in April 1971
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 1971Which component of blood transports carbon dioxide, urea and hormones?
- 2nd April 1971Name the organelle in a plant cell where photosynthesis takes place.
- 3rd April 1971Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 4th April 1971A 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 1971Name one method used to sterilise fresh water during the production of potable water.
- 6th April 1971Why can metals conduct electricity when solid?
- 7th April 1971Write the word equation for the reaction between zinc and hydrochloric acid.
- 8th April 1971State whether forming a new chemical bond requires energy or releases energy.
- 9th April 1971Name the alkene with the molecular formula C4H8.
- 10th April 1971State the approximate percentage of nitrogen in today's atmosphere.
- 11th April 1971A spring is compressed. Which energy store increases?
- 12th April 1971What is the difference between alternating and direct current?
- 13th April 1971What observation showed that the atom is mostly empty space?
- 14th April 1971A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 15th April 1971State 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.
- 16th April 1971In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 17th April 1971Name the organ system responsible for breaking food down into small, soluble molecules.
- 18th April 1971Why can HIV not be treated with antibiotics?
- 19th April 1971Name the hormone released when blood glucose concentration is too high, and state its overall effect.
- 20th April 1971Define mutation.
- 21st April 1971An atom has atomic number 9 and mass number 19. Calculate the number of neutrons.
- 22nd April 1971State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
- 23rd April 1971Define the limiting reactant.
- 24th April 1971Give one everyday example of an endothermic process.
- 25th April 1971The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 26th April 1971Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
- 27th April 1971Why should you write down the equation even if you cannot finish the calculation?
- 28th April 1971A current of 2.0 A flows through a resistor for 30 s. Calculate the charge that flows. Use Q = I x t.
- 29th April 1971What causes the pressure of a gas on the walls of its container?
- 30th April 1971State what the gradient of a distance-time graph represents.