Physical and chemical changes_Grade7
2. Formation of curd is a __________change.
A
Physical Change
B
Chemical change
C
None of these
D
colour change
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Lesson duration is: 50 minItems in this lesson
2. Formation of curd is a __________change.
A
Physical Change
B
Chemical change
C
None of these
D
colour change
Slide 1 - Quiz
Slide 2 - Slide
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1:00
What is a change?
Slide 3 - Mind map
Slide 4 - Slide
Slide 5 - Link
Slide 6 - Slide
Does the colour of the paper change?
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YES
NO
Slide 7 - Poll
Slide 8 - Slide
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What are the characteristics
of a physical change
of a physical change
Slide 9 - Mind map
Are all physical changes reversible?
Give examples.
Give examples.
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Slide 10 - Open question
Slide 11 - Slide
Give two examples of Physical Change
based on what you have learned.
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Slide 12 - Open question
Is rusting a physical or chemical change?
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Slide 13 - Open question
Slide 14 - Slide
What are the other characteristics of a chemical change?
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Slide 15 - Open question
Physical Change
Chemical Change
Slide 16 - Drag question
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Characteristics of chemical change
No new product is formed
New product is formed
Evolution of gas
Generation of light and sound
Only physical properties like shape, size, colour etc. of the substance changes.
Generation of characteristic smell
Only chemical properties and composition of the substance changes.
Slide 17 - Drag question
timer
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Give some examples
of chemical changes
of chemical changes
Slide 18 - Mind map
Condensation of steam is a physical or chemical change? Justify your answer
Slide 19 - Open question
LPG in a gas cylinder is in form of a liquid. Which physical and chemical changes occur when it burns?
Slide 20 - Open question
1.Dissolving sugar in water is a_______ change
A
Physical change
B
Chemical change
C
Colour change
D
None of the above
Slide 21 - Quiz
3.Adding salt to water makes it salty. Which of the following statement is true regarding this change?
A
It is a chemical change because a new substance is formed.
B
It is a physical change because the original substance can be recovered.
C
It is a chemical change because there is exchange of heat.
D
It is a physical change because there is a slight change in colour.
Slide 22 - Quiz
Slide 23 - Link
I am able to differentiate between physical and chemical changes
Slide 24 - Poll
Create a Venn diagram to compare the characteristics of physical and chemical change.
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1:00
