We had a special visitor in Kindergarten last Thursday... Dr. Kristin Rosler, affectionately known as "Science Mom" will be joining our class on one or two Thursdays a month to enhance our science curriculum with fun hands-on activities and experiments for the children. She started working with last year's Kindergarten class as her daughter, Zosia, was a member of the class.
Dr. Rosler received her PhD. from the University of Kentucky in Molecular Biology and Genetics. She did her post-doctoral residency at the University of Washington, Department of Oncology in Seattle. She is currently an adjunct faculty member at Johnson & Wales and Roger Williams Universities.
Our first topic for discussion: solids, liquids, and gases... The kids were more than excited to learn that everything that exists on planet Earth can be defined as one of 3 things.
Our first experiment showed the chemical reaction between baking soda and vinegar. After dropping some baking soda into the vinegar jug, a balloon was attached to the spout and then the fun began!!! Carbon dioxide gas filled the balloon as you can see in the pictures below.
Using half a lemon, 2 sugar cubes, a splash of water and an antacid tablet, the children made a Lemon Fizz. Not everyone liked the taste but there were plenty of giggles going around when they dropped the antacid tab into the liquid. Again, gas bubbles... these they could see! Thank you, Kristin.
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