Daily Practice · GCSE Science
June 2009 - GCSE Science 5-a-day
Every GCSE Science sheet published in June 2009, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in June 2009
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st June 2009Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 2nd June 2009Explain why sweating cools the body down.
- 3rd June 2009State what is meant by the term ecosystem.
- 4th June 2009Give one reason distillation of seawater requires a large energy input.
- 5th June 2009Describe metallic bonding.
- 6th June 2009A student reacts 2.4 g of magnesium with excess dilute hydrochloric acid: Mg + 2HCl -> MgCl2 + H2. Relative atomic mass of Mg = 24. Calculate the number of moles of hydrogen gas produced.
- 7th June 2009State whether breaking a chemical bond requires energy or releases energy.
- 8th June 2009Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
- 9th June 2009Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
- 10th June 2009Name the energy store associated with a moving car.
- 11th June 2009Why does the national grid transmit electricity at a very high potential difference?
- 12th June 2009Why is the atomic model a good example of how scientific models change?
- 13th June 2009A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
- 14th June 2009A 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.
- 15th June 2009Define the independent variable.
- 16th June 2009State the type of large biological molecule that all enzymes are made from.
- 17th June 2009Name the type of pathogen that causes malaria.
- 18th June 2009Define homeostasis.
- 19th June 2009Give one example of variation that is caused purely by the environment rather than by genes.
- 20th June 2009A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.
- 21st June 2009Why are the noble gases unreactive?
- 22nd June 2009How many atoms are there in 0.5 mol of helium?
- 23rd June 2009Using the values in the previous question, calculate the overall energy change for the reaction.
- 24th June 2009In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
- 25th June 2009Describe the test, and the positive result, for ammonium ions.
- 26th June 2009Convert 3.5 kJ into joules.
- 27th June 2009A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
- 28th June 2009How is the temperature of a gas related to the motion of its molecules?
- 29th June 2009A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
- 30th June 2009Name the type of electromagnetic wave used by a television remote control.