Daily Practice · GCSE Science
February 1995 - GCSE Science 5-a-day
Every sheet in February 1995
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1995Why does taking repeat readings and calculating a mean improve the data?
- 2nd February 1995Name the plant tissue that transports water and dissolved minerals from the roots to the leaves.
- 3rd February 1995State two ways measles is prevented from spreading.
- 4th February 1995Define homeostasis.
- 5th February 1995Give one example of variation that is caused purely by the environment rather than by genes.
- 6th February 1995Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 7th February 1995Give two observations when lithium is added to water.
- 8th February 1995State the value of the Avogadro constant and what it counts.
- 9th February 1995Explain, in terms of bonds, why breaking bonds is an endothermic process.
- 10th February 1995In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 11th February 1995Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 12th February 1995Write the equation linking power, energy and time, and rearrange it for time.
- 13th February 1995In a series circuit, the current through one lamp is 0.30 A. State the current through a second lamp in the same circuit.
- 14th February 1995A gas is heated in a sealed rigid container. Explain what happens to the pressure.
- 15th February 1995A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 16th February 1995Name the type of electromagnetic wave used by a television remote control.
- 17th February 1995Explain why a satellite moving in a stable circular orbit has a changing velocity even though its speed stays constant.
- 18th February 1995Define an undifferentiated cell.
- 19th February 1995Which tissue transports water and mineral ions from the roots?
- 20th February 1995Give three uses of the glucose produced in photosynthesis.
- 21st February 1995Explain, using the idea of natural selection, why a population of insects can become resistant to a pesticide over time.
- 22nd February 1995A peat bog covered an area of 850 hectares in 2015. By 2025, drainage for farmland had reduced the peat bog to 680 hectares. Calculate the percentage decrease in the area of the peat bog.
- 23rd February 1995Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
- 24th February 1995Why do polymers have higher melting points than small molecules such as methane?
- 25th February 1995Complete: acid + metal carbonate gives ...
- 26th February 1995State the four factors that can increase the rate of a chemical reaction.
- 27th February 1995Name the carboxylic acid produced when ethanol is oxidised.
- 28th February 1995Describe, in terms of wavelength, the difference between the radiation the Earth receives from the Sun and the radiation it re-emits from its surface.