What this lesson teaches
This activity helps students observe acid-base reactions through color changes. They will learn how substances interact to form new products, a fundamental concept in chemistry.
Can you finish colorful chemical reactions in about 25 min?
You will observe acid-base reactions through color changes.
Sign in to start the full activity flow, save this lesson, print a learner version, and track XP. The preview below is public so parents and educators can evaluate the activity before joining.
This activity helps students observe acid-base reactions through color changes. They will learn how substances interact to form new products, a fundamental concept in chemistry.
Experiencing reactions first-hand aids in understanding chemical properties and processes. The visible transformation engages students, making the abstract idea of chemical reactions tangible and memorable, invoking principles of embodied cognition.
1. Gather 1 cup of water, 2 tablespoons of baking soda, and 1 tablespoon of vinegar. 2. In a clear bowl, mix the baking soda with water until dissolved. 3. Slowly add vinegar and watch the fizzing reaction unfold! 4. Observe the color change, if any, and note your observations. 5. Try adding food coloring to the baking soda before mixing — how does this change the reaction? 6. Discuss with your partner what you saw — what do you think caused the fizz?