Saturated solutions | Science | Quizalize & Oak National Academy

Starter quiz

What happens to most solutes as the temperature of a solvent increases?
- They dissolve more quickly. ✓
- They become insoluble.
- Their mass increases.
- They evaporate with the solvent.
When drawing a graph in science, which of the following graphs have their variables plotted correctly?
What is typically used in science to predict values from a graph?
- A line of best fit. ✓
- The axis labels.
- The title of the graph.
- The mean values before they're plotted.
- A bar chart.
Solubility is a description of how well a solvent can dissolve into a solute.
- True
- False ✓
What type of graph is most appropriate for showing the relationship between suggested variables? KEY: Independent variable (IV) | Dependent variable (DV)
- bar chart
  
  ⇔
  
  IV: hair colour | DV: number of students ✓
- scatter chart
  
  ⇔
  
  IV: mass of sugar | DV: time taken to dissolve ✓
- table of results
  
  ⇔
  
  IV: shoe size | DV: favourite food ✓
The term for the measure of how much a substance can dissolve in a given amount of solvent at a specific temperature is...
- 'solubility' ✓

What observation indicates that a solution has become saturated?
- The solution becomes hot.
- Undissolved solute remains. ✓
- The solvent changes colour.
- The solution starts to bubble.
A line of best fit on a solubility graph can be used to predict the solubility of a solute at temperatures not directly tested.
- True ✓
- False
When solutes become insoluble as a solution cools, it may lead to the formation of...
- 'crystals' ✓
The process of a solute dissolving in a solvent until no more can dissolve at a particular temperature is known as reaching...
- 'saturation' ✓
Match the following key terms to their descriptions.
- Soluble
  
  ⇔
  
  Describes something that can dissolve in a solvent. ✓
- Insoluble
  
  ⇔
  
  Describes something that cannot dissolve in a solvent. ✓
- Saturated solution
  
  ⇔
  
  A solution that cannot dissolve any more solute. ✓
- Solution
  
  ⇔
  
  The mixture formed between solute and solvent. ✓
- Solubility
  
  ⇔
  
  A measure of how well something dissolves. ✓
- Solute
  
  ⇔
  
  A substance that can dissolve to form a solution. ✓
Use the graph to determine the mass (in grams) of sugar that will dissolve in 100 cm³ of water at 85℃. (Give the number to the nearest hundred).
- '400' ✓

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At a given temperature, there is a limit to how much solute can dissolve in a solvent.
Solutes may become insoluble as a solution cools.
Lines of best fit can be used to predict unknowns values if one variable is known.
Data from multiple investigations can be plotted on the same graph for ease of comparison.

Pupils are reluctant/struggle to plot multiple sets of data on one graph.

Fold the table of results so pupils are only looking at one set of data at a time when plotting. Use different plot symbols/colours too.

Saturated solution - A saturated solution is one in which no more solute can dissolve in the solvent at a given temperature.
Solubility - Solubility refers to how well a solute is able to dissolve in a solvent to create a solution.
Line of best fit - A line that depicts the trend of scattered data plots on a graph.