Marianna,
Don’t worry. She’ll learn. My babies all used to do the same thing. It’s really quite normal. Babies enjoy sensory experiences and that’s why they like to play with their food. I’d keep giving it to her because seeing, touching, and smelling foods is part of them learning to eventually eat those foods. If you want to put a limit to her throwing it on the floor, that’s fine, but it’s really best to let them play with their food at that age. She’s really young and I’m sure she’ll do better in the coming months.