Home > Subjects > Science > Level 1 > 1.5 Acids and bases > Assessment
- Subject: Science
- AS: 90944
- Level: 1
- Credits: 4
- External
Science 1.5 Demonstrate understanding of aspects of acids and bases
Assessment
- This achievement standard will be assessed by a written external examination.
- The content examinable has been listed above.
- You will also be expected to have carried out relevant practical work and observations from this can be examined.
- Within the examination paper all questions will provide opportunity for all grades of performance - Achievement, Achievement with Merit, and Achievement with Excellence; there are no standalone questions for lower achievement grades.
- You should attempt all questions.
Resources or information supplied
A resource booklet will be provided. It will contain:
- a table of ions
- a Periodic Table that shows the symbol, atomic number and the relative atomic mass of each element.
The type of resource booklet supplied can be viewed here.
You should practice with this resource to become used to it before the examination.
Notice that the names of the ions are not provided, only their formulae and that sulfate ion and sulfide ion are not the same.

