Signs: Bubbles and Color Changes

Learning Target: 

• I can identify if a change is physical or chemical using signs of chemical changes

HOWLs Target: 

• I treat all property with care.

Agenda

• Warm-up: EXCEPTIONS? (2min)
• If I take a bottle half full of water and shake it hard, bubbles will form. Are the bubbles evidence of a chemical change? Why or why not?
• Signs of chemical changes
• Bubbles!
• electrolysis of water
• Color changes
• red liquid and clear liquid #1
• red liquid and clear liquid #2
• pennies in salt and vinegar
• Fire

Homework:

• formative assessment on signs of chemical changes and law of conservation of mass: Class AD - Thursday, Class BC - Friday