المجلس الأعلى للتعليم SUPREME EDUCATION COUNCIL Photosynthesis Plants perform photosynthesis to create their own food. To complete this process, plants need carbon dioxide and water including chlorophylls in plant cells which absorbs light energy needed for the production of photosynthesis. The soil minerals play a very important role in plant growth Fatima is conducting an experiment to determine the impact of light amount on the growth of plants, so she planted five tomato plants distributed all over the garden but in different parts. The figure below shows the movement of the shade of this house through the garden from 8:00 am until 12:00 noon, and number of hours where direct sun light reaches each plant. 12 noon 8 AM Plant site The number of hours in which light reaches plant 8 9 D 11 12 10 Question 1 Fatima assumes that plant E will grow better than the rest of the plants, do you agree? Explain your answer?
Question 2: المجلس الأعلى للتعليم SUPREME EDUCATION COUNCIL Fatima decided to re-conduct the experiment but this time she will use fifty plants instead of five within the same area a. Do you think this is a correct decision? Explain your answer? b- What are the factors that can be controlled by Fatima in order to increase the accuracy of the experiment? Question 3 Fatima suggested that the plant E leaves will be damaged quickly due to the exposure to large amount of light, Hissa disagreed with her. With whom you agree with? Explain your answer?
Aisha noticed that the plant “A” is leaning to other direction and she discussed this issue with Khadeeja. a. What is the scientific name for the phenomenon of a plant leaning towards certain direction b. Based on your understanding, in what direction does the plant “A” is leaning? c. Write an explanation for your answer
RE Questions Tick the following sentences with true(V) or false (x) Answer True False Sentences 1. Root cells of the plant contain chlorophyll. 2. Plants play an important role in maintaining ecological balance through absorbing carbon dioxide and releasing oxygen. 3. The green plants in the shade absorbs heat to carry out photosynthesis 4. Plants breath oxygen only at night because they perform photosynthesis at day light. a. What are the main types of energy transformation performed in photosynthesis: 1. The transformation of heat energy into light energy. 2- The transformation of light energy into chemical energy 3- The transformation of wind energy into electric energy 4- The transformation of chemical energy into heat energy.
المجلس الأعلى للتعليم SUPREME EDUCATION COUNCIL Photosynthesis Plants perform photosynthesis to create their own food. T
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المجلس الأعلى للتعليم SUPREME EDUCATION COUNCIL Photosynthesis Plants perform photosynthesis to create their own food. T
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