Classification as plant or animals science quiz, science quiz for kids, 1st, 2nd & 3rd Grades. This is a biology science activity for students entailing them to learn how to classify organisms either as plants or animals. Typically, plants are green, manufacture their food through photosynthesis, produce seeds and flowers. Animals on the other hand generally move about and some can think and act according to their senses. If students understand such characteristics commom among animals and plants they will know how to classify them. This is an interactive online quiz with MCQ's. Begin practicing by clicking on the start button.