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Explore properties of water using the above interactive chart. With this is a temperature-entropy chart for water you can retrieve pressure P, temperature T, density ρ, internal energy u, enthalpy h, and entropy s, by just gliding your cursor across the screen.
Hot and cold water look exactly the same, but they don't behave the same. Show kids a few of the properties of water with this experiment.
Take the temperature of the warm water. You can use any thermometer to do this. It should be around 50 degrees centigrade. And the cold water, which should be around 15 degrees centigrade.
This lesson covers important properties of water: cohesion, surface tension, and absorption/desorption. It is helpful to begin by discussing what a “property” is. Children at this age might not know what it means but by relating it to themselves, they can quickly understand its definition.
Water has the power to dissolve things like no other substance can. To find out more about what water can do, you can test many of its properties right in your own kitchen. TRY THIS!
So, water is a bond between three atoms: two positively (+) charged hydrogen atoms and a negatively (-) charged oxygen atom—H-O-H. That is true whether the water is a liquid, solid (ice), or gas (water vapor).
Depending on the temperature and energy of the molecules in water, water can exist in three states: Ice - Ice is the solid form of water. When water gets below 0 degrees C (32 deg F) it will freeze and become ice.
