Sequences are used for the mandatory experiments. These worksheets allow the students to think about how an experiment is carried out. They will be particularly useful as practise for section B of the examination paper where students may be asked to describe an experiment.

Cloze Tests have been appearing more frequently on Leaving Certificate Ordinary Level Chemistry examination papers in recent times. Therefore the Chemistry Support Team compiled some of these to ensure that students have extra appropriate material for revision purposes.

Matching Columns are useful in order that the students can practise relating ‘Chemical Terms’ to their ‘explanations’.

1. Periodic Table and Atomic Structure
Cloze tests
Atomic structure and periodic table
Radioactivity

3. Stoichiometry, Formulas & Equations
Sequences
Determination of relative molecular mass (Exp 3.1)

4. Volumetric Analysis
Sequences
A hydrochloric acid/ sodium hydroxide titration (Experiment 4.2A)
Preparation of sodium chloride by titration of hydrochloric acid with sodium hydroxide (Experiment 4.2A)
Preparation of a standard solution of sodium carbonate (Experiment 4.1)
Standardisation of a hydrochloric acid solution using a standard solution of sodium carbonate (Experiment 4.2)

5. Fuels and Heats of Reaction
Sequences
Determination of heat of reaction of hydrochloric acid with sodium hydroxide (Experiment 5.1)
Cloze tests
Hydrocarbons
Heat
Oil Refining

6. Rates of Reaction
Sequences
Monitoring rate of production of oxygen using a gas syringe (Experiment 6.1)
Monitoring rate of production of oxygen using a graduated cylinder (Experiment 6.1)
Studying the effects of reaction rate on concentration (Experiment 6.2a)
Studying the effects of reaction rate on temperature (Experiment 6.2b)

7. Organic Chemistry
Sequences
Recrystallisation of benzoic acid (Experiment 7.1)
Preparation of Soap (Experiment 7.2)
Melting point determination of benzoic acid using an aluminium block (Experiment 7.1)
Melting point determination of benzoic acid using a thiele tube (Experiment 7.1)
Preparation and properties of ethanal (Experiment 7.4)
Preparation and properties of ethanoic acid (Experiment 7.5)
Extraction of clove oil  from cloves by steam distillation (Experiment 7.6)
Separation of a mixture of indicators using thin layer chromatography (Experiment 7.7)

9. Environmental Chemistry – Water
Sequences
Determination of total suspended solids by filtration (Experiment 9.2)
Determination of dissolved solids by evaporation (Experiment 9.2)

Option 1 – Additional Industrial Chemistry and Atmospheric Chemistry
Cloze tests
Acid rain
Atmospheric chemistry
Greenhouse effect

Matching Columns
These columns span the entire syllabus. They are useful in order that the students can practise relating ‘Chemical Terms’ to their ‘explanations’.
Matching Columns 1
Matching Columns 2
Matching Columns 3
Matching Columns 4
Matching Columns 5
Matching Columns 6
Matching Columns 7

It is envisaged that more support material will be compiled for Ordinary Level students in the future. If any teacher has any suggestions for addressing the lack of resource material for Ordinary Level students, these would be very welcome.