Mason Jar Science for grades K-3:  Using home-available ingredients, do real science in a Mason jar!   Make clay, a balloon barometer, bend light, create crystals and grow a plant.  Register beginning December 19 to reserve your jar and other supplies.  A video will be released on each of 5 consecutive Wednesdays:  January 13, 20, 27;  February 3, 10.  Supplies will be available on the Children's cart starting January 8.