1. We understand hot and cold by measuring the temperature of an object or substance. Temperature indicates how much heat energy is present, with higher temperatures feeling hot and lower temperatures feeling cold.

    We understand hot and cold by measuring the temperature of an object or substance. Temperature indicates how much heat energy is present, with higher temperatures feeling hot and lower temperatures feeling cold.

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  2. When water is cooled, it contracts until 4°C, then expands as it freezes into ice at 0°C. When heated, water expands and turns into vapor at 100°C, transitioning from liquid to gas, undergoing thermal expansion.

    When water is cooled, it contracts until 4°C, then expands as it freezes into ice at 0°C. When heated, water expands and turns into vapor at 100°C, transitioning from liquid to gas, undergoing thermal expansion.

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  3. Food in India is fascinating due to its diverse regional cuisines, rich history, and cultural significance. Spices, flavors, and cooking techniques vary widely, reflecting the country's vast cultural heritage and traditions, making Indian cuisine a vibrant and integral part of its identity.

    Food in India is fascinating due to its diverse regional cuisines, rich history, and cultural significance. Spices, flavors, and cooking techniques vary widely, reflecting the country’s vast cultural heritage and traditions, making Indian cuisine a vibrant and integral part of its identity.

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  4. Water is essential for survival because it is necessary for hydration, bodily functions, and maintaining life. It supports digestion, nutrient absorption, and temperature regulation in the body.

    Water is essential for survival because it is necessary for hydration, bodily functions, and maintaining life. It supports digestion, nutrient absorption, and temperature regulation in the body.

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  5. Examples of natural transformations include a seed growing into a plant and a caterpillar transforming into a beautiful butterfly. These processes demonstrate the remarkable life cycles and development stages of living organisms on Earth.

    Examples of natural transformations include a seed growing into a plant and a caterpillar transforming into a beautiful butterfly. These processes demonstrate the remarkable life cycles and development stages of living organisms on Earth.

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