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Posted: 05/01/2007
Fed resource: My Money Part I
Short description: A Science Project for My Money Part I
   
Lesson time: 120+ minutes
Materials: A copy of My Money Part I workbook for each student, glass or see-through plastic jars, pennies, various solutions (rain water, coca cola, vinegar, sugar water, salt water, baking soda and water, oil)
Audience: Elementary School
Grades: 1, 2, 3
Subjects: Money and Banking
Concepts: Money and Banking - Money
Documents: None
Tip/Tool:
       Have students work through various pages and activities in the My Money Part I workbook. Discuss the types of coins used in the United States including features on the coins and what the coins are made of. (for information about coins, see: www.usmint.gov/about_the_mint/index.cfm?action=coin_specificationssee)

        Explain that pennies are coins made from two metals: zinc and copper. Pennies are 97.5% zinc and 2.5% copper.

        Place a penny in front of each jar/container of solution. Show the students the pennies and ask the students to describe each penny and record their descriptions for later.

        Ask the students to predict what they think would happen to a penny if it were placed in each solution: rain water, coca cola, vinegar, sugar and water, baking soda and water, salt and water, oil. Record their predictions for later.

        Have students drop each penny into its solution.

        Each day shake the containers and record any changes the students note in the pennies.

        Finally, drain the solution and have the students note any final changes. Ask the students whether their predictions regarding the changes in the pennies were accurate. And discuss why the various solutions caused changes or caused no changes in the pennies.        

        Tell the students that one of the characteristics of money is that it should be durable (long lasting). Based on the experiment, ask the students if the penny meets that requirement and why.

Submitted by: carol stough
Oakville Elementary