INDEPENDENCE, Mo. -- Some parents in Independence have been warned by school officials to watch out for something called "Happy Crack."

"Happy Crack" isn't actually a drug; it is a mix of powdered Kool-Aid and sugar that kids carry around in plastic bags.

The principal at Glendale Elementary stated in a letter sent to parents that kids have been buying, selling, eating and snorting the mixture in behavior that "mimics a drug culture."

A group of fifth-graders got in trouble for using it.

One teenager who said his younger brother is one of the kids who took the substance to school told KCTV5 News, "They try to snort it like crack, and it's not very cool and they could get in trouble."

Independence police spoke with the fifth-graders involved about the dangers of real drugs.

Administrators gave the students a warning.