Mundelein students test the acidity level of Halloween candy

Halloween had a science theme at Mechanics Grove Elementary School in Mundelein, where 20 students clad in goggles, gloves and plastic aprons tested trick-or-treat candy for its acidity levels.

The fourth- and fifth-graders had been told eating sour candy is almost as bad for their teeth as inhaling battery acid, and sucking on hard candy can erode tooth enamel and cause tooth decay. Tueday, they had a chance to test it.

"This is an introduction into pH for students. We will be discussing what makes candy and foods sour, and what students can do to protect their teeth when eating acidic foods," said Erika Inka, sponsor of the school's Illinois Math and Science Academy Fusion club.

The candies tested for their pH level included Laffy Taffy, Starbursts, Jolly Ranchers, Dum Dums, Lemonhreads and Life Savers.

"The club is for students who are gifted, talented and interested in science and math. We're providing them opportunities with chemistry now, and the next unit will be engineering," fourth grade teacher Kim Prochnow said.

This activity is part of the school's Illinois Math and Science Academy Fusion club. IMSA Fusion is an enrichment program for students who are interested in mathematics and science