Science Project on “Temperature and Smell”, Project Topic on Human Beings, Animals Plants for Class 8, 9, 10 and 12 Students.
Temperature and Smell
Materials Required:
- Paper towel
- Perfume
- Refrigerator
A molecule is the smallest particle of a substance, made up of one or more atoms held together by a force.
When heated they move faster, than they would, if cold. As the temperature increases, more molecules escape and travel into the air. This indicates that perfumed molecules can be smelled more easily, when you put some on your warm skin. Hypothesize that perfume will not smell as stron if it is cold, since molecules travel at a slower rat then. Take a paper towel and tear it into three strips. Fold to thicken each strip.
Put a drop of perfume on each and place one on a table at room temperature, the other in the refrigerator and the third in the freezer. Smell all three strips after a few hours to determine which has the strongest smell and which the faintest.
What do you suppose will happen to the perfumed strip, if you take it from the freezer and place it by a sunny window? Will the molecules from garlic and lemon juice and other smelly objects react the same way to heat and cold?
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