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Science Probe II Technology Activities

Chapter 9

Internet

1. Who came up with the idea of chemical symbols and formulas? From where did the idea of using symbols in formulas come? Why were chemical symbols and formulas thought to be necessary? What different systems have been used for chemical formulas in the past? Conduct an Internet search to obtain answers to these questions. It might also be helpful to correspond through e-mail or talk in a web discussion site with a chemist. Prepare a multimedia presentation to inform your classmates of what you have learned. Below is a web site to get you started:

VC2: Your Virtual Chemistry Club
http://www.chemcenter.org/vc2/

2. Who determines what symbols should be used for an element? How is it determined? Who determines which scientist first discovered an element when there is a dispute? How is it determined? Two chemists conduct tests to find the values of certain properties of a new element, such as density and melting point, and the two do not agree. How is it determined which chemist is correct? Conduct an Internet search to obtain answers to these questions. It might also be helpful correspond through e-mail or talk in a web discussion site with a chemist. Prepare a multimedia presentation to inform your classmates of what you have learned.

Application Software

Activity 9E – Use a word processing program to make the two-column table as directed in this activity. As you read the sections, take your notes on the computer. Write your rules in the left column before you read and the new rules you learn in the right column from the reading on page 200. Discuss these rules with a classmate. Transfer the document to a presentation program; then use your table for the class to compare results. Print the document, and secure it in your SCIENCE PROBE Logbook.

 


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