Page 15 - 新思维科学活动用书9 样章
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1 Photosynthesis and the carbon cycle
6 Explain how Sofia’s results support her conclusion.
7 How can Sofia improve her experiment?
Tick (✓) the correct answer.
Use three sets of dishes for each quantity of fertiliser.
Use a different kind of water plant in each dish.
Put each dish in a different temperature.
Exercise 1.2B Testing a variegated leaf for starch
Practice
In this exercise, you will provide explanations using your scientific knowledge.
Zara found a plant that had leaves with some green areas and some white areas. Leaves like this are
called variegated leaves.
white
green
She decided to test one of the leaves for starch using iodine solution. She made this prediction:
The green parts of the leaf will contain starch, but the white parts will not.
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