Page 35 - Science Course 1 (Book 1)
P. 35

THE MICROSCOPE                               Mo. 1 - L4a What are the Types of Microscopes?
        Lesson 4


                                                          Let’s Begin
          In this topic, you will learn the following
          lesson:
                                                          The Development of Microscopes
          Mo. 1 - L4a What are the Types of Microscopes?
                                                          The invention of microscopes enabled people to see
                                                          details of living things that could not be seen with the
          Mo4-L4a      What are the Types of Microscope?  unaided eye.

        KEY CONCEPT:                                      One of the first microscopes, invented by Anton van
                                                          Leeuwenhoek in the late 1600s, could magnify an
        1. How did microscopes change our ideas about living  image about 270 times its original size.
            things?
        2. What are the types of microscopes, and how do they
            compare?

                     Vocabulary A-Z

                     Let us learn some vocabulary




        Light Microscope

        a microscope that uses
        light and lenses to enlarge
        an image of an object.                            In the early 1700s Robert Hooke used a microscope
                                                          to observe and name cells for the first time.






                          Compound Microscope

                          a light microscope that uses
                          more than one lens to magnify
                          an object.





        Electron Microscope                                             Key Concept
                                                                  What are the Types of Microscopes?
        a microscope that uses a                              How did Microscopes change our ideas about
        magnetic field to focus a                                           living things?
        beam of electrons through
        an object or onto an object’s
        surface.





















      28
   30   31   32   33   34   35   36   37   38   39   40