Observations and Physical vs. Chemical Changes
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Éléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Vidéo
How could you tell a reaction had happened?
Slide 4 - Question ouverte
Slide 5 - Diapositive
Slide 6 - Vidéo
What observations did you make?
Slide 7 - Question ouverte
Slide 8 - Vidéo
What observations did you make?
Slide 9 - Question ouverte
Slide 10 - Vidéo
What observations did you make?
Slide 11 - Question ouverte
Slide 12 - Vidéo
What observations did you make?
Slide 13 - Question ouverte
Slide 14 - Diapositive
Slide 15 - Diapositive
Is this a chemical reaction?
Yes
No
Slide 16 - Sondage
Slide 17 - Diapositive
A
Physical change
B
Chemical change
Slide 18 - Quiz
A
Physical change
B
Chemical change
Slide 19 - Quiz
A
Physical change
B
Chemical change
Slide 20 - Quiz
A
Physical change
B
Chemical change
Slide 21 - Quiz
A
Physical change
B
Chemical change
Slide 22 - Quiz
A
Physical change
B
Chemical change
Slide 23 - Quiz
Are these physical changes or chemical reactions?
Physical change
Chemical reaction
Melting butter
Dissolving salt in water
Burning a bonfire
Freezing water
Adding Mentos to Coca Cola
Baking a cake
An explosion
Slide 24 - Question de remorquage
Give 3 examples of an observation you might make during a reaction.
Slide 25 - Question ouverte
How do we tell the difference between a physical change and a chemical reaction?
Slide 26 - Question ouverte
Two colourless liquids mix. They form a yellow solid. Is this a chemical reaction or a physical change. Explain why.
