How to master your sense of smell
AdultsBiologyHumanScience...Some perfumers can distinguish individual odors in a fragrance made of hundreds of scents; tea-experts have been known to sniff out the exact location of a particular tea; and the NYC Transit Authority once had a employee responsible only for sniffing out gas leaks.
The Real Reason Leaves Change Color In the Fall
AdultsEnvironmentNatureThe chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor.