Home > Science Experiments > Separation and Identification - Mixing it up

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Mixing it up

Anything a person can combine is a mixture. Mixtures with varying compositions are called heterogeneousDifferent throughout, meaning that they have different appearance and properties at different points in the mixture. For example, a mixture of oil and water is a heterogeneous mixture. The two substances form layers because of their different chemical properties, and one part of the mixture will have a higher concentration of oil, while another part of the mixture will have a higher concentration of water.

Solutions are a type of mixture in which all the substances

are evenly distributed, or homogeneousThe same throughout.. A solution has the same appearance and properties throughout the entire mixture. When sugar is mixed into a cup of hot tea, for example, the sugar molecules...

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1. Introduction
2. Mixing it up
3. Separating by size
4. Separating by speed
5. What is it?
6. Experiment 1 - Chromatography: Can you identify a pen from the way its colors separate?
7. Experiment 2 - Identifying a Mixture: How can determining basic properties of a substance allow you to identify the substances in a mixture?
8. Design Your Own Experiment