The student is expected to explore and recognize that a mixture is created when two materials are combined such as gravel and sand, and metal and plastic paper clips.
The student knows that matter has measurable physical properties and those properties determine how matter is classified, changed, and used.
Mixture Basics: Chem4Kids.com (website) - Simple explanation of the properties of mixtures. When two or more kinds of matter are put together it is called a mixture.
Pure Substances, Mixtures, and Separations: Science Alive! (website) - Short reading about the nature of mixtures.
Mixtures: Monroe County Women's Disability Network (website) - Short page with straightforward explanations of mixtures, solutions, suspensions and colloids.
Separation of a Mixture: Alabama Learning Exchange (website) - Students explore mixtures, recognize that a mixture is created when two or more materials are combined, and design their own procedures for separating a mixture of four ingredients.
- Supporting Lessons
- Assessment Ideas
- Literature Connections
- Additional Resources
Separating Marbles, Separating Coins, Separating Plastic and Metal Beads: Science Alive! (website) - Three simple separation activities, two with pictures.
Separating a Mixture: Perkins School for the Blind (website) - Activity in which students separate salt from sand.
Properties of Mixtures and Solutions: University of Virginia (website) - Students make observations, organize and analyze information, and measure and record data while identifying, separating and determining the concentrations of components in mixtures.
Elaboration Lessons and Extensions
Separating Mixtures: SupaScience (website) - Students learn methods for making and separating mixtures.
Compounds and Mixtures: BBC (video) - Interactive video on compounds and mixtures.
How Can We Find Out What Is in Water? BioEd Online (website and video) - Students use chromatography to separate the components of a mystery liquid that is a mixture of several different food colors.
Set out several mixtures (salt and pepper, metal and plastic paper clips, pennies and nickels, gravel and sand, sugar), and ask students to determine whether each is a mixture and provide evidence for their answers. Challenge students to think of ways to separate each mixture into its component parts without touching the samples (heat, magnet, water, evaporation).
Physics: Why Matter Matters! Green, D. (ISBN-13: 978-0753462140)
Solids, Liquids, and Gases. Ontario Science Centre (ISBN-13: 978-1550744019)
Super Science Concoctions: 50 Mysterious Mixtures for Fabulous Fun. Hauser, J. (ISBN-13: 978-0824968021)
Mix It Up! Solution or Mixture? Maurer, Tracy (ISBN-13: 978-1618102270)
Matter. Cooper, Christopher (ISBN-13: 978-0751361353)
Salt. Walpole, Brenda (ISBN-13: 978-1560740605)
Iron. Hasan, Heather (ISBN-13: 978-1404201576)
Mixtures and Solutions: Why Chemistry Matters. Aloian, M. (ISBN-13: 978-0778742500)
Mixtures and Solutions: Reading Essentials in Science. Karpelenia, J. (ISBN-13: 978-0756946425)
Mixtures and Solutions: Search PlanIt (website) - Links to lesson plans, worksheets and printables you can use to teach your students about mixtures, solutions and other areas of physical science.
Mixtures and Solutions: Science-class.net (website) - Links to activity labs, quizzes, sideshows, and other resources to help you present and teach concepts related to mixtures and solutions.