Many insects are sturdy and require low maintenance. Ask your parents or teacher if you can host an Insectarium of local bugs?
It is surely be fun to keep the insects clean and healthy while studying the role played by insects in local environment.
The easiest species of insects to keep are various species of cockroaches such as the Madagascar hissing cockroaches, Gromphadorhina portentosa. They will readily take various fruits and vegetables such as squash, cucumber, pumpkin, lettuce, tomato, potato, apple, oranges, strawberries, bananas, etc as well as dry dog or cat food. All they need is a suitable container such as an aquarium or Tupperware like box with a lid. You can use petroleum jelly around the lip to keep them from climbing out and supply them with cardboard egg cartons as hiding places.