1 bag of white cotton balls
Different extracts (i.e. almond, vanilla, peppermint, chocolate, etc.)
Dip a cotton ball in once scent only until you have about 4-6 different scented cotton balls.
During activity time, have the cotton balls set out, each on a different mini paper plate.
See if the children can identify each smell.
Provide the answers written on a piece of paper hidden underneath the plate so when the children have given their final guess, they can lift the plate up to see the answers.
If possible, provide a picture of what the scent is beside the word to encourage early reading and writing. Or, if possible you could even have the actual object of what the smell is, (i.e. a real piece of chocolate, peppermint leaf, vanilla bean, almonds or almond paste, etc.)
*You could even introduce this science activity at circle time so the children have some instruction on what the activity is about. Then, put it out during morning prek activity time and they can explore it on their own.