Physical Science Week 6. Unit 1 – Nature of Matter Chemical Properties & Changes. Standard S8P1a. Distinguish between atoms and molecules. Standard S8P1.g. Identify and demonstrate the law of conservation of matter. Standard S8P1.d.
Unit 1 – Nature of Matter
Chemical Properties & Changes
Cake batter to cake is a chemical change.
How would you undo the change?
Burn a log – how do you undo the change?
___ H2O -> ___H2 + ___ O2
1. How can you determine if a chemical or physical change is happening? What is the most important question to ask?
2. Is one piece of evidence sufficient information to determine if it is a chemical or physical change? Give an example.
3. The Stature of Liberty was originally a copper color. After being exposed to air, she turned a greenish color. Explain what happened.
Compare and contrast chemical and physical changes with a Venn Diagram.
Unit test Friday: Study everything