Daily Practice

GCSE Science

5th April 1993

5 questions · GCSE · 584 questions in this band

1
Using the Earth's Resources and Potable Water
Give one reason distillation of seawater requires a large energy input.
2
Life Cycle Assessment, Recycling and Corrosion
Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
3
Atomic Structure and the History of the Atom
Define an isotope.
4
The Periodic Table: Groups and Trends
Explain why potassium is more reactive than sodium.
5
Bonding, Structure and Properties of Matter
State the charge on a calcium ion (Group 2).

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 April 1993, including the monthly compilation PDF.