🌋✨ Volcano Eruption STEM – Build & Erupt a Volcano (Kindergarten–Grade 2)Bring hands-on science and engineering into your classroom with this exciting Volcano Eruption STEM Challenge! In this activity, students will build a volcano model and then make it erupt safely using a simple baking soda and vinegar reaction. This resource follows the Engineering Design Process in a fun, kid-friendly way—perfect for early learners. Students will plan, build, test, record results, and improve their v