In this one-session hands-on class, we will experiment with an acid (vinegar) and a base (baking soda) using bottles and balloons.  After conducting our controlled experiment, we will apply our understanding of an acid-base reaction to making the batter for soda bread. Students will learn how to conduct a controlled experiment, what is an acid-base reaction, how to measure the volume of liquids and solids, how to measure the circumference of a sphere, and how to make soda bread.

Materials for balloon experiment: water, vinegar, baking soda, 4 bottles, 4 balloons, teaspoon (tsp. 5ml), tablespoon (tbsp. 15ml), measuring tape, two funnels, marker, pencil, printout

Materials for bread: Large mixing bowl, medium bowl, large spoon, tablespoon, teaspoon,
bread pan, measuring cups (1 cup and 1⁄2 cup), tray, butter knife

Ingredients: milk, vinegar, baking soda, flour (whole wheat), salt, and a spoon of something sweet (like honey or maple syrup or sugar)