1.
The word contains 7 letters.
Challenge – guess
which word is this?
grape sweet energy blood
single
sugar
respiration
GLUCOSE

2.
Reverse energy
Prevent losing heat
Make cells and
repair tissues
Make enzymes
immediately
source of energy

3.
ALPINE SKI HOUSE
WHAT PROCESS IS
THIS?
Melting
3

4.
ALPINE SKI HOUSE
WHAT PROCESS IS
THIS?
Chewing
4

5.
ALPINE SKI HOUSE
WHAT PROCESS IS
THIS?
Breaking
5

6.
ALPINE SKI HOUSE
WHAT PROCESS IS
THIS?
Crushing/
Grinding
6

7.
ALPINE SKI HOUSE
WHAT PROCESS IS
THIS?
Dissolving
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8.
ALPINE SKI HOUSE
WHAT PROCESS IS
THIS?
Cutting
8

9.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
WHAT IS THE SIMILARITY BETWEEN THOSE PROCESSES?
9

10.
ALPINE SKI HOUSE
CHEMICAL AND
PHYSICAL CHANGE
LESSON 2.1 – CHEM 7

11.
ALPINE SKI HOUSE
SUBTITLE GOES HERE
1. PHYSICAL
CHANGE
11
This Photo by Unknown Author is licensed under CC BY

12.
ALPINE SKI HOUSE
PHYSICAL CHANGE
A physical change alters
the form of a
substance, but does not
change it to another
substance
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13.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
PHYSICAL CHANGE
Examples of physical
change include:
- Change in shape
- Change in size
- Change in phase
13

14.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
PHYSICAL CHANGE
•Physical changes might be caused by:
• Grinding
• Cutting
• Crushing
• Bending
• Breaking
• Heating/cooling
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15.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
PHYSICAL CHANGE
• Physical changes are usually reversible
15

16.
ALPINE SKI HOUSE
WHICH PROCESS IS
THIS?
Digestion:
- Mechanical digestion
(physical change)
- Chemical digestion
(chemical change)
16

17.
ALPINE SKI HOUSE
SUBTITLE GOES HERE
2. CHEMICAL
CHANGE
17

18.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
CHEMICAL CHANGE
A chemical change is a
change in which a
substance is changed
into a different
substance
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19.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
CHEMICAL CHANGE
• For example, when iron is heated with sulfur, a new substance – iron
sulfide is formed
• The iron and sulfur have reacted together to form a new substance.
A chemical reaction has taken place
 We can show what happens in a reaction using a word equation:
iron + sulfur  iron sulfide
reactants product
19

20.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
CHEMICAL CHANGE
What happens in a reaction?
Example: Mg + 2AgNO3  Mg(NO3)2 + 2Ag
20

21.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
CHEMICAL CHANGE
Examples of chemical changes include:
• Burning
• Rusting
• Decomposing
21

22.
ALPINE SKI HOUSE
WATCH` VIDEO AND
POINT OUT
EVIDENCES SHOWING
A CHEMICAL CHANGE
OCCURRED
22

23.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
EVIDENCE THAT A CHEMICAL CHANGE HAS OCCURRED
1. A color change
23

24.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
EVIDENCE THAT A CHEMICAL CHANGE HAS OCCURRED
2. A gas is given off
24

25.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
EVIDENCE THAT A CHEMICAL CHANGE HAS OCCURRED
3. Heat is produced
25

26.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
EVIDENCE THAT A CHEMICAL CHANGE HAS OCCURRED
4. A precipitate is formed
26

27.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
EVIDENCE THAT A CHEMICAL CHANGE HAS OCCURRED
5. A change in pH
27

28.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
DETECTING A CHEMICAL REACTION
28

29.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
IS COAGULATION A PHYSICAL OR CHEMICAL CHANGE?
29

30.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
Chemical changes Physical change
30

31.
I wish you love and peace

32.
And in the coming
year, may it bring
you blessings of
prosperity and
success.

33.
I hope this holiday
will be full of
surprises and
cheer.

34.
ALPINE SKI HOUSE
BURNING
LESSON 2.2 – CHEM 7

35.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
CHEMICAL EQUATION
A + B  C
In the equation:
- The arrow represents the chemical reaction
- The reactants are the substances that react together (A and B)
- The products are the new substances that are made in the
reaction (C)
35

36.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
BALANCE CHEMICAL EQUATIONS
1. Write the word equation
2. Write the symbol equation
3. Balance the number of atoms of each element
36

37.
ALPINE SKI HOUSE
TITLE HERE
Lorem ipsum dolor sit amet, consectetur
adipiscing elit. Ut gravida eros erat. Proin a
tellus sed risus lobortis sagittis eu quis est. Duis
ut aliquam nisi. Suspendisse vehicula mi diam,
sit amet lacinia massa sodales ac. Fusce
condimentum egestas nunc a maximus.
Quisque et orci purus. Proin dolor mi, ultrices
sit amet ipsum placerat, congue mattis turpis.
Donec vestibulum eros eget mauris dignissim,
ut ultricies dolor viverra. Phasellus efficitur ante
nec sem convallis, in ornare est accumsan.
11%
19%
17%
29%
24%
CHART TITLE
Jan Feb Mar Apr May
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38.
ALPINE SKI HOUSE
ALPINE SKI HOUSE
TABLE TITLE GOES HERE
YOUR HEADING YOUR HEADING YOUR HEADING YOUR HEADING
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39.
ALPINE SKI HOUSE

40.
ALPINE SKI HOUSE
THANK
YOU
WWW. ALPINESKIHOUSE.COM
VICTORIA LINDQVIST
+1 (589) 555‐0199
victoria@alpineskihouse.com

41.
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