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    Outreach and Education Division

    The EDUCATION AND OUTREACH DIVISION supports chemistry education at all levels, including K-12, college, and adult/continuing education. It maintains liaisons to the Chicago Public Schools and the American Association of Chemistry Teachers (AACT). The Division engages the general public in chemistry-related educational activities, participates in ACS activities at the annual Illinois State Fair, and publicizes all events and news-related content. The division oversees the annual Project SEED program for the Section as well as the Project SEED scholarships. The Division also assists public officials and other community bodies concerning chemistry-related matters. The Education and Outreach Division includes the Education, Outreach, Project SEED, and Public Affairs Committees.

    The EDUCATION COMMITTEE provides chemistry-related educational programs and information to learners of all ages and actively engages with educators at the pre-K-12 and college levels. Subcommittees include:

    • AACT Liaison
    • College Education Subcommittee
    • Continuing Education Subcommittee
    • Chicago School Board Liaison
    • K - 12 Education Subcommittee

     

    The PUBLIC AFFAIRS COMMITTEE ensures that section members and public officials and bodies are informed of matters where the knowledge and practice of chemistry is of substantial public importance. These matters can include government issues, environmental issues and the social responsibility of chemists. The Public Affairs Committee gives the Public Affairs Award biennially.

    The OUTREACH COMMITTEE engages the general public, educators and children in chemistry-related educational activities and participates in many different types of events around the greater Chicago area.   Subcommittees include:

    • Community Activities Subcommittee
    • Illinois State Fair Subcommittee

     

    PROJECT SEED COMMITTEE identifies interested low-income and/or minority high school junior and senior students who are interested in participating in a paid summer research experience with  a college or university faculty member.  It supports financial and logistical concerns for the student/ faculty relationships and communicating  relevant program information to the national ACS organization.  The committee is also responsible for distributing Project SEED awards to support the internships. 

    Maple Syrup Crystals

    January, 2016:  

    Kids, making maple syrup crystals is a fun project! They are an alternate flavorful sweetener in drinks or other treats because maple syrup crystals have a more complex flavor than sugar crystals or rock candy. Here are two methods for making maple syrup crystals. Note you must use pure maple syrup and not one of the popular commercial brands made with high fructose corn syrup and molasses.

    Method 1

    Have an adult partner heat a cup of pure maple syrup in a pan over medium heat. They need to stir and heat the syrup until it starts to thicken or crystals are seen forming on the bottom or side of the pan. Your adult partner will then pour the syrup onto a chilled plate and allow the syrup to crystallize. If a dark-colored plate is used then it will be easier to watch the crystals form.

    Method 2

    Cover a baking sheet or shallow dish with a scant 1/4” layer of water. Freeze the dish to make ice. Have an adult partner heat maple syrup as above, and remove the pan from heat. Remove the dish of ice from the freezer. Then your adult partner can drop spoonfuls of the hot syrup onto the ice. The sudden temperature change will cause crystals to form within minutes.

    Maple syrup is a mixture of sugars, water, and minerals. In addition there are small amounts of organic acids, amino acids, proteins, phenol compounds and even a few vitamins. The variation in the latter ingredients gives maple syrup the broad spectrum of flavors from different suppliers (this is similar to honey).

    At 66°Bx * the sugar is completely in solution and it is a stable solution. When heated, the concentration of sugar increases as water is lost. The sugar remains in solution at the higher temperature even though much of the water boils away. After heating, there is more sugar than can remain in solution at lower temperatures. The solution is said to be super-saturated. Agitation or stirring can cause the sugar to crystallize and come out of solution until the sugar in solution reaches a stable concentration for its temperature. The fact that sugar solidifies into crystals is extremely important in making confections.

    Controlling crystallization is quite tricky and depends on temperature and time. You might try both methods above to see if the crystals appear different to your eyes.

    * Bx is the abbreviation for Brix, a measure of the sugar concentration by weight in an aqueous solution. So 66 degrees Brix means that 100 grams of solution would contain 66 grams of sugar.

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    References:
    http://chemistry.about.com/od/sugarcrystalsrockcandy/a/Maple-Syrup-Crystals.htm
    Cornell Maple Bulletin 202 (2007) by Stephen Childs

    Editor, Dr. Kathleen Carrado Gregar, Argonne National Laboratory