The vocabulary you should know fo the "Spelling Bee contest" is:
About animals:
animal bird cat chicken cow crocodile
dog duck elephant fish swan frog
giraffe goat hippo horse lizard monkey
mouse/mice sheep snake spider tail
tiger zoo bat bear cage dolphin
fly jungle pet kangaroo kitten
lion panda parrot puppy rabbit
hark whale butterfly camel dinosaur
extinct fur insect octopus wild
wing
About body and the face:
arm body ear eye face foot/feet
hair hand head leg mouth nose
smile back beard blond(e) curly fair
fat moustache neck shoulder stomach
straight thin tooth/teeth finger toe
About clothes:
bag shirt clothes shoe dress skirt
glasses sock handbag hat trousers watch
T-shirt jacket jeans wear coat scarf
sweater belt crown glove necklace pocket
ring shorts spot spotted stripe striped
sunglasses tights umbrella uniform
About colours:
black blue brown colour green