• 1.2 Act 2 Hot and Cold

    How Molecules are Affected by Heat

    Hot vs Cold Particle motion

    Film clips:


    Molecule diffusion model:

      • Go to the web page    Drop of dye animation
      • Find and run the simulation titled “Diffusion of Drop”
      • Add some dye to the water and watch what happens.
      • Slide the Temperature button to see how the temperature affects molecule movement.


    For this quiz you should be able to :

    Properly show the speed of particles through the use of motion lines and spacing of particles

    Describe what makes food coloring move through water

    Explain how temperature affects the movement of particles, even when the temperature is below zero.

    Describe the particle motion in solids such as ice

    Explain how food coloring would behave on a solid such as ice