1. 2. 1st experiment We heat some water at 67 Celsius Degrees. 3. Then we take some cold water at the temperature of 3 Celsius Degrees. 4. Hot water Cold water When colouring both, we notice that the colour is more easily diffused in hot water 5. 2nd experiment A similar procedure we have here 6. where we can see that the colour in the hot water is soluted, while most of the colour in the cold water stays at the bottom 7. 3nd experiment Adjusting a balloon in a beaker 8. and heating the system 9. Explanation: As the air in the beaker is heated, it expands and part of it flows into the balloon. We notice that the balloon blows up!!!