Daily Practice · GCSE Science
July 1973 5-a-day
Every sheet in July 1973
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 1973Explain why sweating cools the body down.
- 2nd July 1973Explain why a pyramid of biomass is never wider at the top than at the bottom.
- 3rd July 1973Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 4th July 1973Define a covalent bond.
- 5th July 1973Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.
- 6th July 1973State the difference between a rechargeable cell and a non-rechargeable cell.
- 7th July 1973Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
- 8th July 1973Name three greenhouse gases.
- 9th July 1973A kettle transfers 360000 J of energy in 150 s. Calculate its power in watts.
- 10th July 1973Calculate the current drawn by a 1150 W kettle on a 230 V supply.
- 11th July 1973State the approximate radius of a nucleus compared with the radius of an atom.
- 12th July 1973A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
- 13th July 1973A rectangular coil carrying a current is placed in a magnetic field, with its two long sides parallel to each other. Explain why the coil rotates rather than moving in a straight line.
- 14th July 1973State the difference between resolution and accuracy.
- 15th July 1973Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 16th July 1973How do bacteria make a person feel ill?
- 17th July 1973Define homeostasis.
- 18th July 1973Give one example of variation that is caused purely by the environment rather than by genes.
- 19th July 1973Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 20th July 1973On what property are elements ordered in the modern periodic table?
- 21st July 1973In the equation 2H2 + O2 gives 2H2O, how many moles of water are formed from 3 mol of hydrogen?
- 22nd July 1973Explain, in terms of bonds, why breaking bonds is an endothermic process.
- 23rd July 1973In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 24th July 1973Why must dilute nitric acid be added before silver nitrate solution when testing for a halide ion?
- 25th July 1973State the equation for work done.
- 26th July 1973In a series circuit, the current through one lamp is 0.30 A. State the current through a second lamp in the same circuit.
- 27th July 1973State the relationship between pressure and volume for a fixed mass of gas at constant temperature.
- 28th July 1973A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 29th July 1973Name the type of electromagnetic wave used by a television remote control.
- 30th July 1973Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 31st July 1973Where in a plant are stem cells found?