Year 5 Science · Solutions and separating mixtures · Summary
Year 5 Science Solutions and separating mixtures: summary and key words
Part of the Year 5 Science solutions and separating mixtures chapter. Chapter overview · whole chapter on one page
Chapter summary
| Skill | Method |
|---|---|
| Dissolving | Some solids, such as salt and sugar, dissolve in water. Sand and pebbles do not dissolve. |
| Solutions | A solution is a mixture in which a solid has dissolved. The solute dissolves into the solvent. |
| Recovering a solid | Evaporate the water from the solution, and the dissolved solid is left behind as crystals. |
| Sieving | A sieve separates solids of different particle sizes. Small particles pass through the holes. |
| Filtering | Filter paper holds back a solid that does not dissolve, and the liquid runs through. |
| Choosing a method | Think about whether the solid dissolves, and whether the particles differ in size. |
Can you…?
- I can say which solids dissolve in water to form a solution
- I can name the solute, the solvent and the solution in a mixture
- I can describe how to recover a dissolved solid, by evaporating the water
- I can say how to separate a mixture using a sieve, filter paper or evaporation
- I can choose a method for a mixture, and give a reason
Key terms
- solution
- a mixture in which a solid has dissolved in a liquid
- dissolve
- when a solid spreads out through a liquid so that its particles cannot be seen
- solute
- the solid that dissolves in a liquid
- solvent
- the liquid that a solid dissolves into
- evaporation
- the change of a liquid into a gas, which then goes into the air
- mixture
- two or more substances mixed together, which can often be separated again
- sieving
- separating solids of different sizes, using a sieve with holes
- filtering
- separating a solid that does not dissolve from a liquid, using filter paper
- particle
- a very small piece of a substance