osmosis

• Diffusion


  The movement of particles through an area where they are at a lower concentration
• Factors affecting rate of diffusion


  • Temperature (hot and cold)
  • Concentration of particles
• Higher temperature


  Particles have more energy and move more
• Higher concentration


  Faster diffusion
• Osmosis


  The diffusion of water molecules from a region of high water concentration to a region of low water concentration through a partially permeable membrane
• We can investigate osmosis
• what is the process by which carbon dioxide can move into and out of cells?

  diffusion