Unit 18
Lydia made this flow chart to show how sugar is made. A flow chart shows how a task is carried out. How sugar is made
The sugar cane is harvested.
The sugar is put into bags.
The cane is taken to the factory.
The juice is boiled until the water evaporates, leaving crystals.
The juice is collected.
The sugar crystals are spin-dried.
The cane is crushed.
The cane is cleaned.
1 In what way are the arrows helpful? 2 What happens when water evaporates? 3 What happens after the sugar cane is crushed? 4 Why is the juice boiled? 5 What happens just before the sugar is bagged? 6 What do you still want to know about sugar production? Write a question.
• Question 6: Ask students to read out their questions. Record a selection on the board and discuss how they could find out the answers. • The flow chart offers a series of sentences in the passive voice. You may want to point this out to students and draw attention to the difference between this and the active voice. (‘ They collect the juice. ’ describes what the subject (they) did. ‘ The juice is collected. ’ tells us what happened to the subject (the juice).)
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