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vs. Targets: *Understand vs. Targets: *Understand

vs. Targets: *Understand - PowerPoint Presentation

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Uploaded On 2018-09-17

vs. Targets: *Understand - PPT Presentation

the difference between physical changes and chemical reactions Tell evidence of physical changes and chemical reactions Categorize changes as physical or chemical and ID: 668072

change chemical signs physical chemical change physical signs reactions molecules table paper watch list difference understand youtube www https substance targets video

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Presentation Transcript

Slide1

vs.Slide2

Targets:

*Understand

the difference between physical changes and chemical reactions.

*Tell evidence of

physical changes and chemical reactions. *Categorize changes as physical or chemical, and show examples of each.Slide3

Get out a pencil and paper.

Add a heading:

Name

Period ____ Table _____

Physical & Chemical Change

You’ll be discussing items with your table and taking a few notes.Slide4

As you watch the first video, answer this:

1. a.

What do molecules do in a PHYSICAL change?

b. What do molecules do in a CHEMICAL change?Slide5

A. What do MOLECULES do in a

physical

change? B. What do they do in a chemical change?

https://www.youtube.com/watch?v=M8tyjwB42X4Slide6

With your table, discuss target #1:

*Understand the difference between

physical changes and chemical reactions.Slide7

As you watch the second video, answer this:

What are 5 signs that molecules are probably changing and a chemical change is taking place?

A.

B.

C.

D.E.Slide8

Signs of a chemical change?

https://www.youtube.com/watch?v=37pir0ej_SESlide9

At your table, make sure each person was able to list at least 5 signs of chemical change.Slide10

Chemical reactions

are

sometimes so amazing, they may leave your mouth

agape

! They aren’t always amazing, but AGAPE can help you decide if you are seeing a chemical reaction. Slide11
Slide12

The

browning

that happens in cooking involves chemical changes:Slide13
Slide14
Slide15

Look at your list of signs of chemical change.

Which are

occuring in caramelization?Slide16

With

phyiscal change, there is

NO CHANGE IN THE MOLECULES that make the substance, so a new substance is not formed.

but you can see changes in:

size/shape phase densitytexture(

MAY change color) Slide17

Are you seeing

pysical change or chemical reaction with these changes?Slide18

At your table, talk about the change on your card. Be ready to tell the class how you can tell whether it is a physical or chemical change.Slide19

On your paper, list an example of a physical change, and tell 3+ signs that help you know it is a

physical

change.

An example of a physical change is

_________________. Some signs that

this is a physical change are: a. b. c.Slide20

On your paper, list an example of a

chemical change and give 3+ signs.

4. An example of a chemical

change is _______________. Some signs that this is a chemical change are: a. b. c.Slide21

*Understand the

difference between

physical changes and chemical reactions.*Tell evidence of physical changes and

chemical reactions.

*Categorize changes as physical or chemical, and show examples of each.

Here are our targets. On the top of your paper, by your name, rate yourself from 1 to 4 on how well you have met them.