An example of a teaching analogy:
"The action of a limiting reactant to determine the extent to which a reaction takes place is like producing meals at a cafeteria. When you run out of chicken pieces, no more chicken dinners can be produced, even though there might be a good supply of mashed potatoes and vegetables…the other 'reactants'."
Source: Murray Hart, retired science teacher, previously posted at scienceanalogies.com
Vegetarian and vegan alternatives are available! When you run out of vegetable samosas…
Read examples of scientific analogies
Many examples of science analogies are listed in 'Creative comparisons: Making science familiar through language. An illustrative catalogue of figurative comparisons and analogies for science concepts'. Free Download.