Subject Area: Science
Objective: To make observations of a chemical reaction
Materials: Baking Soda, water, vinegar, 2 balloons, 2 empty soda bottles, funnel.
Procedure:
1. Make Predictions: What will happen when baking soda and water are mixed? What will happen when baking soda and vinegar are mixed? Write down your predictions.
2. Measure and pour one cup of water in a empty soda bottle.
3. Measure and pour one cup of vinegar in a empty soda bottle.
4. Measure and pour one tablespoon of baking soda in each of the balloons using the funnel.
5. Place the balloon on the neck of the water bottle. Allow the baking soda to pour into the water bottle. What happens? Record your responses.
6. Place the balloon on the neck of the vinegar bottle. Allow the baking soda to pour into the vinegar bottle. What happens? Record your responses.
7. Discuss the role of chemical reaction in this experiment.
Justification:
The students will use their previous experiences with vinegar and baking soda as discussed in the unit on which to base their predictions. The students will observe that some elements chemically react to each other when they are combined together. A chemical reaction changes the properties or characteristics of the elements; creating a new substance with its own characteristics or properties.
