Chemistry of Smells

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Junior Certificate


Sense organs and their functions

Main learning outcomes:

Awareness of, and response to our surroundings through the sense organs

Junior Certificate Science

1B3 Sensory System
Awareness of, and response to our surroundings through the sense organs

2A1 Materials
States of matter and characteristics of solids liquids and gases
2A2 Mixtures
Separating substances using filtration, evaporation, distillation and paper chromatography
2C2 Bonding
Molecules as groups of atoms

Leaving Certificate


Shapes and structures of molecules
Organic functional groups
Chiral effects, e.g. spearmint vs peppermint
Properties of esters
Steam distillation for extraction of essential oils

Main learning outcomes:

Students appreciate the difference to physically detectable properties that different shapes and structural arrangements can make
Different functional groups causes different odours to be detected

Leaving Certificate – Biology

Unit 2 – The Cell. 2.4 Cell Diversity:
2.4.2 Organs
2.4.3 Organ System

Unit 3 – The Organism. 3.5 Responses to Stimuli
3.5.1 Structures of Response
3.5.3 Responses in the Human

Leaving Certificate – Chemistry
2 Chemical Bonding
2.1 Chemical Compounds
2.5 Shapes of Molecules and Intermolecular Forces

3. Stoichiometry, Formulas and Equations
3.1 States of Matter
3.4 Chemical Formulas

7 Organic Chemistry +++
7.2 Planar Carbon : Esters (Higher level)
7.4 Organic Natural Products: Steam Distillation