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Flash Animations for MATTER, Change of State (phase) and Measuring learning




Change of state


01. States of water   


02. States of water | molecules in every state   


03. Water cycle   


04. Freezing of a pure substance | water   


05. Freezing of a pure substance | cyclohexane   


06. Freezing of a mixture | water + salt   


07. Boiling of a pure substance | water   


08. Boiling of a mixture | water + salt   


09. Fusion of a pure substance | Melting point of ice   


10. Fusion of a mixture | Crushed ice of salt water   






11. Mass measurement | Double pan & electronic balance   


12. Volume measure, cylinder, pipette, liquid, solid   


13. Volumetric Mass Density   NEW



P, V, T


14. P & V | Boyle's law   


15. P & T | Charles's law | Kelvin scale | absolute zero   
















16. Chromatography | simple version   


17. Chromatography | high school   


18. Miscibility of liquids   


19. Expansibility of gases   


20. Dissolving and mass | solution, solvent and solute   


21. Dissolution | Dilution | Fusion (melting)   


22. Water treatment process | for drinking water   


Practice Questions


23. Dissolution   


24. Pure water    


25. Water states | Volume measurement    


26. Water in drinks   


27. Vaporization   


28. Solidification (freezing) and fusion (melting)   








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The water in our environment


Omnipresence of water
in our environment.

Water, drinks and a constituent of living organisms.

Recognition test of the water.




Aqueous mixtures


Homogeneous and heterogeneous mixtures.

Separation of some components of aqueous mixtures.

Examples of heterogeneous constituents of beverages.

Existence of the gas dissolved in water.

The recognition test of carbon dioxide in lime water




Homogeneous mixtures and pure body.


Water, homogeneous mixtures.

Presence in a mineral substances other than water.

Obtaining water (almost) pure by distillation.





State changes of water, phenomenological approach


First approach to the states of matter.

Specific properties of each physical state.

State changes are invertible.
Water cycle.

Mass measurements, unit, the kilogram (kg).

Volume measurement, unit, per cubic meter (m3).

Distinction between mass and volume.

Conservation of mass during state changes and not the volume conservation.

Locating a temperature, unit: degree Celsius (° C).

Existence of a temperature plateau during a change of state for a pure substance.



Water : solvent


Water is a solvent of some solids and some gas, it is miscible with some liquid.

Conservation of total mass during a dissolution.

Vocabulary of dissolution: the notion of saturated solution is limited to a qualitative approach.


Air composition


Dioxygen, forming air with nitrous.


The oxygen necessary for life.



Volume and mass of air.


Character of a compressible gas.

Mass of a given volume of gas.



A molecular description to understand


A first particle model to interpret the compressibility of a gas.

Distinction between mixed and pure body for air and water vapor.

The existence of the molecule.

The three states of water through the molecular description:
- A gas is dispersed and disorganized;
- The liquid state is compact and disordered;
- Solid state is compact, crystalline solids are ordered.

Interpretation of mass conservation during state changes and in mixtures.