Science Probe II Technology Activities

Chapter 10

Internet

1.Synthesis reactions are very important in our everyday lives. They are used to make petroleum products, ammonia, fertilizers, and may other products. Decomposition reactions are used to produce metals and many gases. Choose one substance that is produced by a synthesis reaction and one substance that is produced by a decomposition reaction. Conduct an Internet search to answer the following questions:

a. In what material is the substance found in nature, and what is its chemical formula?
b. What chemical reaction is used to produce the substance?
c. How exothermic or endothermic is the reaction?
d. How much does it cost to produce this substance?
e. Where or in what is this substance used?

When you have completed your search and are satisfied that you have enough information to answer all questions, prepare a multimedia presentation to inform your classmates of what you have learned. Below is a web site to get you started:

Yahoo!®'s Chemistry Page
http://dir.yahoo.com/Science/Chemistry/

2.Replacement reactions are very important to our bodies, in the making of plastics (polymers) and gasoline, and in keeping our surroundings and us clean. Choose one of these areas, and conduct an Internet search. You should look for answers to the following questions:

a.What are the reactants, and what are their chemical formulas?
b.What are the chemical formulas of the products?
c.How exothermic or endothermic is the reaction?
d.What is its importance? e.Is a catalyst used; if so, what is the catalyst and why is it used?

Prepare a multimedia presentation to inform your classmates of what you have learned.

Application Software

Activity 10A – Use a word processing program to set up the four-column table as directed in this activity. Complete the first two columns by yourself and the third column with your group. As you read the sections in the chapter, take your notes on the computer. When you have completed the chapter, transfer your notes to a presentation program and share with classmates what you have learned. Print the document, and secure it in your SCIENCE PROBE Logbook.