🔬Chemical changes involve the formation of new substances through a chemical reaction.
⚙️Physical changes only change the physical properties of a substance without forming new substances.
🔥Examples of chemical changes include burning a candle and melting of wax.
✂️Physical changes include cutting wood and crushing granite.
💡Understanding the differences between chemical and physical changes helps explain various phenomena.
What is the difference between chemical and physical changes?
—Chemical changes result in the formation of new substances, while physical changes only alter the physical properties of a substance.
What are some examples of chemical changes?
—Burning a candle and melting of wax are examples of chemical changes.
Can you provide examples of physical changes?
—Cutting wood and crushing granite are examples of physical changes.
Why is it important to understand chemical and physical changes?
—Understanding these changes helps explain various phenomena and allows us to better comprehend the world around us.
How do chemical and physical changes impact the composition of substances?
—Chemical changes result in the formation of new substances with different compositions, while physical changes do not alter the composition.
06:40Chemical changes involve the formation of new substances through a chemical reaction.
06:58Physical changes only change the physical properties of a substance without forming new substances.
07:09Examples of chemical changes include burning a candle and melting of wax.
07:28Physical changes include cutting wood and crushing granite.
09:14Chemical changes result in the formation of new substances, while physical changes only alter the physical properties of a substance.
09:53Burning a candle and melting of wax are examples of chemical changes.
10:31Cutting wood and crushing granite are examples of physical changes.
12:13Understanding these changes helps explain various phenomena and allows us to better comprehend the world around us.
