Lab 1-4 Physical and Chemical Changes

We have talked a bunch about physical and chemical changes now. What I would like you to do is to design a clear set of criteria that you can use to determine whether a change is physical or chemical.

In this process I want you to discuss the following:

• What types of changes are chemical and what types are physical? (Come up with examples for each)
• What types of evidence are you looking for in a physical change?
• What types of evidence would convince you that a chemical change has occurred?
• When you are stuck in a scenario where you are unsure, what other resources can you use to figure it out? A good example of this would be the sodium polyacrylate and water, what was it anyway?

Enrichment:

Find a video of a sweet physical or chemical change. Describe which it is. See if you can figure out how to embed a video into a blog post.