 Demonstrate how measuring instruments, such as microscopes, telescopes, and cameras, can be used to gather accurate information for making scientific comparisons of objects and events. Note that measuring instruments, such as rulers, can also be used for designing and constructing things that will work properly.

 History of the Microscope › The first microscopes were really just magnifying glasses with a single lens › The first compound microscope (microscope with more than one lens) was made around 1590 by two spectacle makers experimenting with lenses › Today, microscope inventors would be surprised by the quality yet affordable microscopes that are available in schools. An early microscope used in medicine 

 History of the Telescope › In 1608, an inventor discovered that holding 2 lenses apart would produce greater magnification, but his patent was denied. › Soon after, Galileo played with this idea and began studying the heavens and space. › In 1668, Newton created the first mirrored telescope, which was able to magnify to a much greater extent than lens-based telescopes. Telescope from the 1600s 

 History of the Camera › In 1837, the first fixed image was created by artist Louis Jacques Mande Daguerre. They were called Daguerreotypes. › In 1888, the Kodak roll film camera was developed. › In 1927, General Electric created the first flash bulb, which allowed photos to be taken in dark conditions. › In 1968, the first “out of this world” photo was taken from the moon. It shows the Earth. First camera image ever 

 Resources used. These can also be links to find more information if you are interested in a particular measuring instrument: › microscope.org/basic/microscope-history.htm microscope.org/basic/microscope-history.htm › telescopes.htm telescopes.htm › ›

 Take out your work page.  Pick one measuring instrument you just read about.  How would life be different if we did not have this measuring instrument?  Write at least 6 sentences explaining how life would be different.  Share your ideas with other members in the group.

 It’s experiment time! Each group member should take out one bag. Don’t let other people see what is inside!  Using only your work page, a pen or pencil, and your brain, describe what is inside your bag in 60 seconds or less.  After 60 seconds, all group members should close their eyes and place their object in the box lid. After all objects are placed, open your eyes

 Pass your work page to the person on your left.  Once you have received someone else's work page, try to determine which object they wrote about using only your eyes and your brain.  Once you think you know the answer, take the object out of the box.

 Once all group members have chosen an object, have each member identify which object they wrote about to see who was correct.  Write a short reflection that answers the following questions: › Did you guess the correct object? Why or why not? › Was the person who had your description able to guess the object correctly?

 Use some of the measuring instruments in the box to examine the object you first wrote about. What information could you add to your description to make it more clear and scientific? Write it down on your work page.  Final Reflection: If you wrote these descriptions from the beginning, what impact would it have had on your experiment? Would it be harder or easier? Name at least one other measuring instrument that could be used to gather data.

 Visit  Comment on this project. What did you like best? What did you like least? What did you learn?  Check out the following sites if you want more information. › science/86-inventors-a-inventions.html to learn more about inventors, such as those who helped invent the telescope. science/86-inventors-a-inventions.html › webunits/measurement/index.htm to learn about more measurement tools. webunits/measurement/index.htm