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Yadu conducted an experiment to test his idea. He took two test tubes, A and B and added a pinch of rice flour Class 7

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Science Class 7 Science 115 views May 26, 2026 Reviewed & updated Sep 17, 2026
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Yadu conducted an experiment to test his idea. He took two test tubes, A and B and added a pinch of rice flour Class 7

Yadu conducted an experiment to test his idea. He took two test tubes, A and B, and added a pinch of rice flour to the test tubes half-filled with water and stirred them properly. To test tube B, he added a few drops of saliva. He left the two test tubes for 35-45 min. After that, he added iodine solution into both the test tubes. Experimental results are as shown in Fig. 9.15. What do you think he wants to test? Class 7

Answer:

Yadu wants to test the presence of starch in both test tubes.

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