1. Aavi and Thirav noticed that the water puddles in the playground gradually disappeared after school. They observed that the water either evaporated into the air or seeped into the ground, leaving the playground dry by the end of the day.

    Aavi and Thirav noticed that the water puddles in the playground gradually disappeared after school. They observed that the water either evaporated into the air or seeped into the ground, leaving the playground dry by the end of the day.

    See less
    • 2
  2. The lowest temperature that can be achieved is called absolute zero, which is -273.15°C or 0 Kelvin. At this temperature, molecular motion nearly stops, and no heat energy remains in a substance, making it theoretically unattainable.

    The lowest temperature that can be achieved is called absolute zero, which is -273.15°C or 0 Kelvin. At this temperature, molecular motion nearly stops, and no heat energy remains in a substance, making it theoretically unattainable.

    See less
    • 2