Science 8 Mix and flow of matter Learning outcomes: 1 I can relate the behavior of mixtures to the particle model of matter 2.4 – The Particle Model of Matter and the Behavior of Mixtures - Particles are different sizes and when two substances are mixed, the _______________________________________________________________. The particle model also states that particles are attracted to each other. Science 8 Mix and flow of matter However, in some substances particles can be attracted more to particles in other substances than to its own particles. The speed at which the solute dissolves in a solvent is called the _________________________ and can be affected by: WHY??? Because all these things… 1. Cause more collisions 2. And more collisions means more contact. 3. And more contact means quicker, faster dissolving. Create a diagram that: describes one of the following… The before and after of water particles when they are heated up. The before and after of water particles when they are cooled down. The before and after of sugar particles in water when it is stirred.