Observations in Dissolving Experiments

The video explores the effect of temperature on the dissolving process. Initially, the teacher demonstrates how stirring affects dissolving by comparing stirred and unstirred chocolate milk. The main experiment involves heating milk on a stove and adding chocolate mix to both cold and hot milk, observing the differences in dissolving rates. The teacher also introduces a similar experiment with table salt, emphasizing the role of temperature without stirring. The video concludes with a comparison of results, highlighting how temperature influences the dissolving process.

What was the main focus of the experiment conducted on Friday?

• The effect of light on dissolving

• The effect of stirring on dissolving

• The effect of pressure on dissolving

• The effect of temperature on dissolving

What was the purpose of heating the milk on the stove?

• To make the milk boil

• To prevent the milk from burning

• To change the color of the milk

• To add flavor to the milk

What was observed when chocolate mix was added to cold milk?

• The mix dissolved immediately

• The mix floated on top

• The mix changed color

• The mix evaporated

What is the purpose of the new experiment involving table salt?

• To observe the effect of light on salt

• To observe the effect of temperature on salt dissolving

• To observe the effect of stirring on salt

• To observe the effect of pressure on salt

Why is stirring not required in the table salt experiment?

• Because the salt is already dissolved

• Because the liquid does not need stirring

• Because the liquid might burn

• Because the salt dissolves instantly

What was the result of the chocolate milk experiment in terms of dissolving?

• Neither milk dissolved the mix

• The hot milk dissolved the mix faster

• The cold milk dissolved the mix faster

• Both hot and cold milk dissolved the mix equally

What was the condition of the chocolate mix in the cold milk at the end of the experiment?

• Completely dissolved

• Not dissolved at all

• Evaporated

• Partially dissolved

What was the main observation in the hot chocolate milk?

• The mix did not dissolve

• The mix evaporated

• The mix dissolved completely

• The mix changed color

What is the expected outcome of the table salt experiment with warm water?

• Salt will dissolve faster

• Salt will not dissolve

• Salt will change color

• Salt will evaporate

What is the expected outcome of the table salt experiment with cool water?

• Salt will dissolve faster

• Salt will not dissolve

• Salt will dissolve slower

• Salt will evaporate