Thyroid hormone tells all of the cells in your body how busy they should be. Too much thyroid hormone (hypERthyroidism), and your body goes into overdrive; not enough thyroid hormone (hypOthyroidism), and your body slows down.
Place the pot on the stove and turn the heat to high. Check for steam escaping from under the lid, then lift the lid carefully to see how the water is doing. Look at the water. If large bubbles are rising from the bottom of the pot to the surface, the water is boiling.
Quick Answer. Water boils at 100 degrees Celsius because, at that temperature, its vapor pressure equals the pressure of the surrounding atmosphere at sea level. The molecules of liquid are moving too energetically for the outside pressure to keep them in the liquid at boiling temperature. Continue Reading.