In this task you are given a short story and a question regarding that story. You must answer the question based on the events of the story. Try to use the same words in the story to answer each question. You should completely answer the question in a short answer. Do not include information that is unnecessary to answer the question.

Dave was a scientist. Dave wanted to make a great scientific discovery. Dave worked with algae to make electricity. Dave discovered he could make electricity with algae! Dave was awarded for his great discovery.
Why did Dave discover he could make electricity with algae?
Dave wanted to make a great scientific discovery.