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Changes of state of water and the water cycle - Coggle Diagram
Changes of state of water and the water cycle
Properties of water
Water is matter
It has mass and occupies space
At room temperature, water is liquid
It has a definite volume
Does not have a definite shape
It is colourless
odourless
It is also transparent because it allows us to see through it or allows light to pass through
Three states of water
Water has three different stages which are interchangeable.
The three different states are
Solid
Liquid
Gas
Water can change from one state to another when its placed at different temperature
The table below shows the three states of water and the respective examples
Solid
Examples
Ice
snow
iceberg
glacier
Liquid
Example
Water found in water bodies
Oceans
seas
rivers
lakes
Gas
Steam
Water vapour
Changes of states
Water changes from one state to another due o gaining or losing heat
When water gains heat, it can change its state from a solid into liquid or a liquid to a gas
Melting,boiling and evaporation are the processes that water gains heat and changes its state
When water loses heat, it can change its state from a gas to a liquid or a liquid to a solid
Freezing and condensation are the processes that water loses heat and changes its state.
Some processes in which water changes its state, such as melting, boiling or freezing
all take place at one particular temperature
Other processes in which water changes its state
such as evaporation or condensation can take place at any temperature
Temperature is a measure how hot or cold an object is.It is measure in degree Celsius or in a degree Fahrenheit in different countries
Heat gain in water
When ice gains heat from the surroundings, its temperature increases
Melting is a process in which solid changes into liquid
When its temperature reaches 0 degree celsis, ice(solid)
It starts to melt to become water (liquid).
Therefore, the melting point is 0 degree celsis
The melting point is the temperature at which a solid changes to a liquid.
https://youtu.be/oIYyeFhZ7eE?si=wnGGlijKO9UxVF9V
During the process of melting, ice continues to gain heat to change into water. However, its temperature remains unchanged at 0 degree Celsius when this process is taking place.
(This means that ice changes into water completely at the same temperature of 0 degree Celsius)
Therefore, when a substance gains heat, it does not always cause a change in temperature.
This is seen in the process of melting in a substance
https://youtu.be/V8IkioplZ9Q?si=UumndDEoKXok8h7K
Boiling
https://youtube.com/shorts/E8vw4dRgIGc?si=uFo4D86OWp7hBN1p
