Learning Objectives
✤ Understand that liquids can be separated by distillation according to their boiling points.
✤ Describe the separation of oxygen and nitrogen from liquid air by fractional distillation
Settler:
Starter:
Demonstration:
Can show the oxygen in the jar demo with the water rising then ask the kids to explain why this demo does not show that the air is 20% oxygen as they are often taught but is due to pressure differences instead.
Practical:
Main 1:
Use ppt.
Main 2:
AFL:
Most pupils will struggle with the concept but can be used as an introduction to year 10 - use questions from year 10 textbook to assess.
Homework
✤ Understand that liquids can be separated by distillation according to their boiling points.
✤ Describe the separation of oxygen and nitrogen from liquid air by fractional distillation
Settler:
Starter:
Demonstration:
Can show the oxygen in the jar demo with the water rising then ask the kids to explain why this demo does not show that the air is 20% oxygen as they are often taught but is due to pressure differences instead.
Practical:
Main 1:
Use ppt.
Main 2:
AFL:
Most pupils will struggle with the concept but can be used as an introduction to year 10 - use questions from year 10 textbook to assess.
Homework
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