The reason for a flower

["Juvenile literature" "Plants" "Reproduction" "Flowers" "Seeds" "Botany" "Big books" "Readers" "Spanish language" "Children: Grades 1-2" "Flowers juvenile literature" "Seeds juvenile literature" "Plants juvenile literature" "Food" "Nutrition" "Children" "Kindergarten" "Schools" "Juvenile fiction" "Valentines" "Valentine's Day" "Fiction" "Fear" "Thunderstorms" "Grandmothers" "Tooth Fairy" "Tooth Fairy (Legendary character)" "Teeth" "Fairies" "United States" "Judges" "African Americans" "United States. Supreme Court" "Biography" "School stories" "Teachers" "Earth Day" "Pollution" "Hundredth Day of School" "Vocabulary" "Planets" "Cats" "Dogs" "Books and reading" "Magic" "Science" "Human body" "Bats" "Animals" "Dachshunds" "Infancy" "Pigs" "Swine" "Pigs as pets" "Swine as pets" "Astronomy" "Mice" "Money" "Toys" "Dangerous animals" "Swamp animals" "Swamp plants" "Counting" "Counting books" "African penguin" "Health" "Feathers" "Diseases" "Bathing suits" "Autumn" "Alphabet" "Alphabet books" "Nursery rhymes" "Nature" "Nature juvenile literature"]