Physical and chemical change lesson

​Molecules stay the same.

Changing states of matter.

Nothing new is formed.

A physical change

A new substance is formed.

Molecules are changing.

Cannot be reversed

​

A Chemical Change

Here is a picture of a wood pile. When might it go through a physical change and chemical change? Let's discuss each.

​Whats different?

​Compare and contrast.

Multiple Choice

Is chopping wood a physical change or chemical change?

• physical

• chemical

Multiple Choice

Is burning wood a physical change or a chemical change?

• physical

• chemical

​Is the item going through a physical change or a chemical change!

​

Lets identify

Multiple Choice

What is cutting hair?

• physical change

• chemical change

Multiple Choice

What type of change is dying hair?

• physical change

• chemical change

Open Ended

YOUR TURN: What type of change is going on in this photo? A physical change or a chemical change? WHY? (a new substance is formed or the substance stays the same just the matter changes?

Open Ended

Let's try another: What type of change is going on in this photo? A physical change or a chemical change? WHY? (a new substance is formed or the substance stays the same just the matter changes?

Open Ended

KEEP GOING: What type of change is going on in this photo? A physical change or a chemical change? WHY? (a new substance is formed or the substance stays the same just the matter changes?

Open Ended

LAST ONE: What type of change is going on in this photo? A physical change or a chemical change? WHY? (a new substance is formed or the substance stays the same just the matter changes?

Multiple Choice

Which picture shows the log going through a physical change?

Multiple Choice

Which picture shows a banana going through a physical change

Multiple Choice

Which picture shows an apple going through a physical change?

Multiple Choice

Which picture shows an egg going through a physical change?