How high can your students stack a tower made entirely of bubbles? This hands-on STEM challenge invites learners to explore surface tension, make predictions, experiment, and design their own bubble-blowing inventions! The activity includes recording tables, vocabulary, reflection writing, and a creative design page—perfect for summer science fun, STEM centers, or end-of-year engagement. Includes Answer Key for vocabulary. Who Is This Resource For?Grade 2–5 classroom teachersSTEM and scienc