Cette leçon contient 15 diapositives, avec quiz interactifs, diapositives de texte et 1 vidéo.
Éléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
If you spill acid or alkali in class, what should you do?
Slide 4 - Question ouverte
Sort the keywords into the correct box.
Acid
Alkali
Both
Sour
Bitter
Irritant
Corrosive
Lemons
Vinegar
Toothpaste
Soap
Bleach
Wear googles
Slide 5 - Question de remorquage
Which solution is more corrosive?
A
A
B
B
Slide 6 - Quiz
Slide 7 - Vidéo
Slide 8 - Diapositive
This acid is...
A
Weak
B
Strong
Slide 9 - Quiz
This acid is...
A
Weak
B
Strong
Slide 10 - Quiz
This acid is...
A
Weak
B
Strong
Slide 11 - Quiz
Match the keyword to the definition.
Lots of acid particles in less solvent.
Few acid particles in lots of solvent.
All the acid particles split up when dissolved.
Some acid particles split up when dissolved.
Concentrated
Dilute
Strong
Weak
Slide 12 - Question de remorquage
Match each diagram to the correct description.
strong & dilute
strong & concentrated
weak & dilute
weak & concentrated
Slide 13 - Question de remorquage
How would you make a dilute acid solution?
Slide 14 - Question ouverte
A pupil has a dilute solution of weak lemon juice and a concentrated solution of strong bleach. What hazard symbol should she use to label each solution? Explain your choice.