Materials: Mixtures and separation
This half of term in science we will be exploring different types of mixtures and the appropriate methods to separate them.
Pupils who are secure will be able to:
- Define the term mixture and name some common examples.
- Define the term sieving and explain how sieving separates mixtures.
- Define the term filtering and explain how filtering separates mixtures.
- Define the terms solution and dissolve and name some common examples of solutions.
- Recall some factors that affect the time taken to dissolve.
- Describe the effect of temperature on the time taken to dissolve.
- Define the term evaporating and explain how evaporating separates solutions. Identify when sieving, filtering and evaporating should be used.
When working scientifically, pupils who are secure will be able to:
- Research a mixture to find out what substances it is made from.
- Draw and annotate a diagram to explain how sieving separates a solid-solid mixture.
- Identify and justify which type of enquiry to use to answer my testable question.
- Identify solutions by observing and describing their appearance.
- Suggest which variables to change, measure and control when investigating how temperature affects the time taken to dissolve.
- Choose which measurements to take and how long to take them for.
