Lesson 3 Slides Garston

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What do these diagrams show?

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How can we tell that no more sugar is dissolving?

Multiple Choice

What is the difference between an unsaturated solution and a saturated solution?

• An unsaturated solution can dissolve more solute, while a saturated solution cannot.

• An unsaturated solution has no solute, while a saturated solution has excess solute.

• An unsaturated solution is always clear, while a saturated solution is always cloudy.

• An unsaturated solution is made with hot water, while a saturated solution is made with cold water.

Multiple Choice

Is the solution saturated or unsaturated?

• Saturated

• Unsaturated

• Concentrated

• Dilute

Open Ended

A solution is unsaturated if...

A solution is saturated if...

We know a solution is saturated when...

Multiple Choice

How do you know when you have a saturated solution?

• You don't see anymore material in the solution. It has dissolved.

• The material dissolves and no more will dissolve because you see it collect at the bottom.

• The solution is bubbling and cloudy.

• The solution is clear and there is nothing at the bottom.

Open Ended

Explain how temperature affected the solubility in your experiment. Back up with evidence from your experiment.

Match

Match the definition to the correct variable.

• Dependent variable

• Control variable

• independent variable

the variable that we measure

The variable that we keep the same

The variable that we change.

• the variable that we measure

• The variable that we keep the same

• The variable that we change.

Open Ended

How could we investigate the relationship between the temperature and how much solute can be dissolved in a solvent before the solution is saturated?

Multiple Choice

What is the first step in the method described?

• Add 50ml of chilled water to a beaker

• Measure the temperature of the water

• Add one teaspoon of sugar to the water

• Record how many teaspoons could be dissolved

Open Ended

What is the difference between soluble and insoluble?