Can you help me with my homework please ? I had an experiment to do in science this weekend but I...

Can you help me with my homework please ? I had an experiment to do in science this weekend but I forgot to do it and now I need help. Someone may know what happens and please tell me. Here's the experiment : In a glass jar throw some soil and some garbage (lemon peel, chocolate paper etc.) then throw soil again. Again throw some garbage and throw soil on them. After that throw some water and put the lid. With a pen sign outside of the glass jar where the rubbish are. Let the glass jar somewhere for 4-5 days and write down what had happened.