Mixtures
Dough is made up of flour and water. If left for along period of time the water and flour will separate out.
Is dough, a suspension, emulsion, solution or a colloid? Explain

Salt is mixed and stirred in with water until the salt disappears totally.

What is formed, a suspension, emulsion, solution or a colloid? Explain

 

 

 

Oil and water are placed in a jar and shaken. What is formed, a suspension, emulsion, solution or a colloid? Explain

 

In this case oil and water are also placed in a jar and shaken. However the oil particles behave quiet different to the oil-water mixture shown above. What is formed, a suspension, emulsion, solution or a colloid? Explain
What is the name of the substance that must be added to this mixture to prevent the oil from separating out from the water?

 

A hand cream is made by mixing oil and water into a stable mixture that will not separate out. What is formed, a suspension, emulsion, solution or a colloid? Explain

 

Fog is fromed with water and ice particles mixed in with the air. Consider the video on the right. It offers an explanation of how fog forms. After viewing the video suggest whether fog is a suspension, emulsion, solution or a colloid? Explain

What are the perfect conditions for fog to form?

Use your knowledge of particle theory to suggest a reason why fog disperses when the sun comes out.

 

 

 

What type of mixtures can be separeted by the method shown on the right. Click for a video.

What is this method called?

Mayonnaise is a mixture of oil and vinegar. Click to see how the particles behave in the mixture.

What type of mixture is mayonnaise. Explain why.