Created from Youtube video: https://www.youtube.com/watch?v=NRCn8z8gb1wvideoConcepts covered:physical change, chemical change, new substances, chemical reaction, respiration
The video explains the difference between physical and chemical changes, using examples such as tearing paper, burning paper, freezing water, and respiration. It highlights that physical changes alter only the physical properties without forming new substances, while chemical changes result in new substances, indicating a chemical reaction.
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Introduction to Chemical Reactions and Equations | Don't Memorise
Concepts covered:physical change, chemical change, new substances, chemical reaction, respiration
The video explains the difference between physical and chemical changes, using examples such as tearing paper, burning paper, freezing water, and respiration. It highlights that physical changes alter only the physical properties without forming new substances, while chemical changes result in new substances, indicating a chemical reaction.
Question 1
Burning paper is a chemical change.
Question 2
How does water turning to ice classify?
Question 3
Respiration results in a _____ change due to new substances forming.
Question 4
CASE STUDY: A child is playing with clay, molding it into different shapes.
Is molding clay a physical or chemical change?
Question 5
Tearing paper results in a chemical change.
Question 6
What occurs during respiration in terms of change?
Question 7
When paper is burnt, it undergoes a _____ change.
Question 8
CASE STUDY: A chef is preparing a dish and accidentally burns the sauce.
Is burning sauce a physical or chemical change?
Question 9
Freezing water is a physical change.
Question 10
What type of change is paper burning?
Question 11
Converting water to ice is a _____ change.
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