Flexi Says: To turn a question into a hypothesis, a question must be stated in the form of a specific prediction that can be tested with evidence. For example, Alfred Wegener may have started with questions such as, why do the continents of Africa and South America appear to fit together so well? Could the continents have been joined together? After reading some prior research, Wegener worked his questions into a specific, testable hypothesis: Around 300 million years ago, the continents had all been joined. This hypothesis can be tested by observing fossils and rock layers from that time to see whether or not any patterns suggested that now-distant land masses were connected.