Kids can enjoy a fun jump, Chuck the Train, snacks and STEM activities, and they can learn how to make elephant toothpaste, glitter slime, lava lamps, fire snacks, volcanoes, dry ice bubbles and more ...

Slime molds are colorful, fanciful creatures. Blackberry, toothpaste, many-goblet, chocolate tube and scrambled egg slime all have interesting stories to go along with their names.

Lucy Dodson, 6, watches her chemical reaction create “elephant toothpaste” while attending the “Chemistry Challenges” class Tuesday at Longview World of Wonders.

Slime is a popular toy for children manufactured by Mattel, the same company behind Barbie. Made from a mix of guar gum, ...