What I Have Learned Now that you've learned about the history of the development of the microscope, let us find out how far you have understand by answering the activity below. Are you ready? Let's start. Directions: Describe the following scientists below and tell something about their contribution to the development of the microscope. Write your answer on your activity notebook. SCIENTISTS CONTRIBUTIONS 1. Robert Hooke 2. Hans & Zacharias Janssen 3. Anton van Leeuwenhoek 4. Richard Zsigmondy
