Mix it Up!

Dr. Forrester introduces mixtures, explaining that they maintain individual properties and can be separated. He contrasts mixtures with chemical reactions, using baking soda and vinegar to demonstrate a reaction. Physical changes are discussed, highlighting that they don't alter the substance's properties. The video concludes with a review and advice on conducting scientific experiments.

What evidence indicates that a chemical reaction has taken place when mixing baking soda and vinegar?

How does a physical change differ from a chemical change?

Provide an example of a physical change and explain why it is classified as such.