Learners use a mortar and pestle to extract clove oil from cloves using denatured alcohol. They put this oil on paper, which they can take home. Learners discover that the chemicals that produce smells are soluble in alcohol, which is why the alcohol can extract the scent from the cloves. Learners also have the opportunity to create other scented papers using essential oils that have been previously prepared. Great for a unit on senses, a unit on the perfume industry, or a unit on medicine. This activity is currently used in the Biochemistry Unit in OMSI's Chemistry Lab. Cost estimates are per 100 learners. For safety reasons, this activity works best as a demonstration for younger audiences.