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Water: Science Lesson: Activity 3 of 3



The actual boiling point, melting point, and freezing point of water also depend on pressure.

Pressure is how much weight is pushing down on us. Have you heard of atmospheric pressure? We are so used to the weight of the atmosphere that we don’t really notice it, but there are miles of air pushing down on us all the time. We use a barometer to measure atmospheric pressure.

Pressure cookers increase the pressure and raise the temperature in the pot so that food cooks faster.

The water gets hotter in pressure cookers than in regular pots because the the pressure, the the boiling point.

Question 10 of 10