1. The temperature at the core of the Sun is approximately 15 million degrees Celsius (27 million degrees Fahrenheit). This extreme heat is necessary for the nuclear fusion that powers the Sun and produces its energy.

    The temperature at the core of the Sun is approximately 15 million degrees Celsius (27 million degrees Fahrenheit). This extreme heat is necessary for the nuclear fusion that powers the Sun and produces its energy.

    See less
    • 4
  2. The process when water converts into its vapor state is called evaporation. This occurs when water molecules gain enough energy to transition from a liquid to a gaseous state, even at room temperature.

    The process when water converts into its vapor state is called evaporation. This occurs when water molecules gain enough energy to transition from a liquid to a gaseous state, even at room temperature.

    See less
    • 4
  3. An example of evaporation at room temperature is when wet clothes are hung out to dry. Over time, the water in the fabric evaporates into the air, leaving the clothes dry, even though no heat is applied directly.

    An example of evaporation at room temperature is when wet clothes are hung out to dry. Over time, the water in the fabric evaporates into the air, leaving the clothes dry, even though no heat is applied directly.

    See less
    • 3
  4. Yes, water can be observed disappearing from a mopped floor. After mopping, the water gradually evaporates into the air, leaving the floor dry without any visible trace of water, even though no additional heat is applied.

    Yes, water can be observed disappearing from a mopped floor. After mopping, the water gradually evaporates into the air, leaving the floor dry without any visible trace of water, even though no additional heat is applied.

    See less
    • 3
  5. The water in puddles disappears through evaporation and seepage. Evaporation causes the water to turn into vapor and rise into the air, while seepage allows some of the water to absorb into the ground, gradually reducing the puddle.

    The water in puddles disappears through evaporation and seepage. Evaporation causes the water to turn into vapor and rise into the air, while seepage allows some of the water to absorb into the ground, gradually reducing the puddle.

    See less
    • 3