Separating Solids from Liquids
Science: Year 5 & 6 National Curriculum, topic 3.2.2
Separating Solids from Liquids
Dissolving, evaporating and filtering are processes related to mixing and separating solids and liquids.
Physical changes
- Dissolving and evaporating are physical changes and can be reversed.
- The same process can be used to separate other materials dissolved in liquids.
Getting sand from sandy water
- If sand is mixed with water, these substances can be separated using a sieve or filter.
- The water is made of small particles that can pass through a filter.
- The sand is made of larger particles that can NOT fit through the filter, so they are left behind.
- The same process can be used to separate other solids from liquids.
Test yourself on Separating Solids from Liquids
What type of changes are dissolving and evaporating?
What process separates sand from a sandy water mixture?
What is true about physical changes?