Try this easy science based STEM activity for Halloween with chemical reactions! Design a witch's brew potion that bubbles. Students will need to mix various ingredients until they find two that create a chemical reaction to make the potion bubble. This is a very fun activity even your youngest scientists will love! ✅ What's Included ✅ Getting StartedSuggested Material List (you will need baking soda, vinegar, and various other baking supplies)Teacher NotesPrintable Challenge Poster: Hang at y