Substrand · Mixtures, elements and compounds · Integrated Science · Grade 7
Free CBE Grade 7 Integrated Science notes and lessons for Mixtures, in the Mixtures, elements and compounds strand.
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**MIXTURES** A mixture is formed when two or more substances are physically combined without forming a new substance. - Each substance retains its original properties. - The substances that form a mixture are called components. - Mixtures can be separated…
**PURE AND IMPURE SUBSTANCES** **Pure substance:** A material made up of only one type of element or compound. **Impure substance:** A material containing two or more substances mixed together. - A mixture is considered an impure substance. - Pure substances…
**SEPARATING MIXTURES USING DIFFERENT METHODS** Mixtures can be separated using different physical methods depending on the properties of their components. **SEPARATING MIXTURES THROUGH DISTILLATION** **Experiment: Obtaining both salt and water from a salt…
**Separating Mixtures Through Decantation** **Meaning of Decantation** Decantation is a method of separating an insoluble solid from a liquid by allowing the solid to settle at the bottom, then carefully pouring off the liquid into another container. It can…
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