Daily Practice · GCSE Science

Daily Practice - GCSE Science

26th August 1994

5 questions · GCSE · 584 questions in this band

1
Atomic Structure and the Periodic Table
A 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.
2
Using Resources
Explain why potable water is not the same as pure water.
3
Using the Earth's Resources and Potable Water
State what is meant by sustainable development.
4
Life Cycle Assessment, Recycling and Corrosion
State the two substances that must both be present for iron to rust.
5
Atomic Structure and the History of the Atom
Write the electronic structure of a magnesium atom (12 electrons).

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of August 1994, including the monthly compilation PDF.