Agricultural Science

Agricultural Science

Leaving Certificate Agricultural Science

Subject Overview

A new course in Agricultural science was introduced into schools in September 2019.

Agricultural Science is the study of the science and technology underlying the principles and practices of agriculture.

It is a scientific approach to the knowledge and understanding, skills and attitudes that affect the long-term sustainability of our natural resources – the land, plants and animals.

The subject places particular emphasis on the sustainable use of these resources for the economic and social benefit of humankind.

Subject Content

Four main strands of study:

1.Scientific practices – investigations, contribution of science to agriculture.

2.Soils – formation, classification, characteristics, management.

3.Crops – Identification of plants. Production of Grass, Barley or Potatoes, Kale or Miscanthus. Plant physiology.

4.Animals – Identification of animals. Production of Dairy, Beef, Sheep and Pigs. Animal physiology.

Eight themes linked to each strand:

Health and safety

Technology

Breeding and genetics

Sustainability

Policy and Economics

Environment

Nutrition

Food Production

Coursework

Portfolio of practical activities: Students complete 22 specified practical activities, including laboratory and field investigations. A record of all activities is kept in a portfolio (usually an experiment copy).

Individual Investigative Study (IIS): Student's own investigation, through which a topic of agricultural significance is explored. This is based on a theme, which is set annually by the SEC. The IIS needs to be typed into a digital booklet, which will then be forwarded by the teacher to the SEC for grading.

Assessment

Written exam = 75%

State exam in June of leaving cert year

2 hours 30 mins exam based on course content

Separate Higher and Ordinary level papers

Coursework = 25%

Needs to be completed by April of the leaving cert year.

What kind of student would Agricultural Science suit?

For Junior Cert students would have studied Science, which is composed of Biology, Physics, Chemistry and Earth/Space. Agricultural Science would be most like Biology, as it is also the study of living things.

Agricultural Science is generally not difficult to understand, however it is a broad course. Students would need to ensure to learn the material as chapters are covered. Students are provided with concise exam focused study notes to support their learning.

Ag Science can be a good subject to study with Biology/Geography/Home Economics as there is some overlap in course content.

Students do not need to be from a farming background to study Ag Science but an interest in agriculture/environment is desirable.

Students generally enjoy the lab investigations, field activities and the farm trip which take place over the course of the two years.

Ag Science is recognised as a laboratory science subject for 3rd level courses.

Ag Science is taught in mixed ability classes. There are two levels, Higher and Ordinary. Most students study Higher level.

Career Possibilities

Ag Science builds skills and knowledge that are particularly useful for careers in the following sectors:

Horticulture, Forestry, Food science, Agricultural advisor, Biological/Chemical and Pharmaceutical science, Agricultural engineering, Earth and environmental science, Marine science, Renewable energy, Veterinary science, Teaching, Food and beverage production, Agricultural research, Farming, Green keeping, Sports turf management, Zoology, Food science, Microbiology, Rural diversification.

Subject teachers

Helena Kennedy

Lisa Donlon

Agricultural ScienceAgricultural ScienceAgricultural Science
Feb 16
2026
Midterm Break
Mar 02
2026
Wellbeing Week
Mar 16
2026
School Closed
Mar 17
2026
St Patrick's Day (School Closed)
11-Feb-2026
Writers in Schools
11-Feb-2026
Connacht Schools Cross Country Finals
11-Feb-2026
Well done Killian!
Contact
St Brigid's College, Loughrea,
Baunoge,
Loughrea,
Co. Galway,
H62XF63



Enquire
Find Us
© 2026 St Brigid's College, Loughrea