WONDER #675: How Does Scratch and Sniff Work?
Question 1 of 3
This Wonder was mostly about...
- how to make your own scratch and sniff stickers.
- how scratch and sniff technology works and examples of its uses.
- which scratch and sniff scents are most popular.
- why scratch and sniff stickers aren’t made anymore.
Question 2 of 3
Scratch and sniff technology involves treating an object with a __________________ coating.
Question 3 of 3
Which is NOT a common use of scratch and sniff technology, according to this Wonder?
- Scented furniture
- Perfume advertisements
- Teaching people what gas leaks smell like
- Testing for Alzheimer’s disease
Check your answers online at https://www.wonderopolis.org/wonder/How-Does-Scratch-and-Sniff-Work.