Petri Dish Treats are the perfect edible spooky science snacks for a fun and eerie Halloween party! These gelatin bites are quick, easy, and fun to make.
Combine the gelatin and water in a microwave safe glass measuring cup. Microwave in 15-second intervals until the gelatin has melted, stirring after each time.
Mix the fruit juice into the gelatin, and whisk until well combined.
Place the petri dishes on baking sheets to help move them and contain messes.
Divide the gelatin juice evenly between 14 new clean petri dishes, filling about ¾ of the way full.
Before the gelatin has set, place candies, sprinkles, and food coloring into the petri dishes. Use a toothpick to help swirl and place things.
Transfer the decorated petri dishes to the fridge to set for about an hour.