Popcorn has been the quintessential movie snack for decades, enjoyed for its light, airy crunch. But popcorn isn’t the only kernel that pops. Kernels and seeds from a variety of plants also pop when heated, offering unique flavors and textures that can spice up your snack game. These alternatives also pack extra nutrients, making them an appealing option. Get your bowl and nooch ready for some new popped options. How popcorn works Popcorn pops due to its internal structure.