Understand:
- The different types of mixtures (solids, liquids, gases)
- How mixtures can be separated (example: how do you separate rubber bands, powder, paper clips in a cup of water)
- The relationship between a mixture and a solution (how are they the same/different) Think about salt and water.
- The name of a solid material that dissolves in a liquid to form a solution
- Different situations when you would best use evaporation, filtering, and screening and how these work to separate mixtures.
- How to separate a solution of sugar and water and if paper filters are good/bad for this process