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
Download Presentation The PPT/PDF document "vs. Targets: *Understand" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
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. Slide11Slide12
The
browning
that happens in cooking involves chemical changes:Slide13Slide14Slide15
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.