Have students navigate the internet through seven different websites to visually see the differences between individual atoms & elements from the periodic table, compounds & molecules and mixtures. Guided worksheet provides links to each interactive site including a site for building virtual atoms and another for building molecules of defined compounds. Interactive video included and two Quia review game links at end. Used to support the standard for describing the differences between pure substances and mixtures. Copy and paste into your website or blog for easy student access to links. All sites verified 9/2/2015. No answer Key.