Tools of Magnification
What Does a Hand Lens Do?
In this activity, students will use appropriate tools and techniques to gather, analyze and interpret data. Hold up a magnifier (hand lens) and ask the students, How many of you have used this tool before? What can it be used for? Have students examine several items that you have provided-first without, and then with a magnifier. Discuss the differences in the appearance of each item with and without the magnifier. Discuss features or characteristics of the items that were observable only with the aid of magnifier.
Students will learn that scientific progress often is tied to the development of new tools and technologies. For example, until magnifying lenses were developed, people were able only to see as much of the world as their naked eyes would allow. The development of high quality magnifiers and microscopes opened up the world of cells and microorganisms for exploration by generations of scientists.
- Moreno, N., Tharp, B., Erdmann, D., Rahmati Clayton, S., Denk, J. (2008). The Science of Microbes Teacher’s Guide. Houston, TX: BioEd.
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Funded by the following grant(s)
Grant Number: 5R25RR018605