Probe and Ponder (Page 28)
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1. Why is one side of a puri thinner than the other?
Uneven pressure applied while rolling the dough causes variation in thickness. When fried in hot oil, moisture inside turns into steam, causing the thinner side to expand or stretch differently than the thicker side.
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2. Are there more grains of sand on all the beaches and deserts of the world, or more stars in our galaxy?
Scientific estimates indicate that there are vastly more stars in our galaxy and the universe than the total number of grains of sand on all the beaches and deserts of the Earth.
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3. Right from Grade 6, we've observed the incredible diversity of plants and animals around us. From the different shapes of leaves to the many kinds of insects why has nature created such a vast variety?
Nature has created a vast variety of living organisms through the long process of evolution and adaptation, allowing different species to survive and thrive across diverse environments and ecological niches.
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4. Is there such a question that makes you curious about the world? Write it here!
Why do stars twinkle at night while planets do not?
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