Solubility and Solvents: Exploring How Substances Interact with Water

The video tutorial explains the concept of solubility by demonstrating how sugar dissolves in water, making it sweet, while sand does not dissolve, remaining visible. It further explores the solubility of tea leaves, which partially dissolve, altering the water's taste and appearance. The tutorial also discusses the mixing properties of liquids like milk and oil with water, highlighting water as an excellent solvent. It concludes with examples of substances that dissolve in solvents other than water, such as acetone for nail polish removal, and explains dry cleaning as a process using chemicals instead of water.

What happens when sugar is added to water?

• It dissolves completely.

• It sinks to the bottom.

• It forms a separate layer.

• It evaporates.

Which of the following is true about sand in water?

• Sand dissolves in water.

• Sand is soluble in water.

• Sand remains undissolved in water.

• Sand changes the color of water.

What is observed when tea leaves are boiled in water?

• The tea leaves dissolve completely.

• The tea leaves float on the surface.

• The water remains unchanged.

• The tea leaves impart flavor to the water.

How do milk and water interact when mixed?

• They do not mix at all.

• They form separate layers.

• They mix uniformly.

• They react chemically.

Which substance can dissolve nail polish?

• Milk

• Acetone

• Oil

• Water

What is the purpose of dry cleaning?

• To wash clothes with water.

• To use chemicals to dissolve stains.

• To dry clothes in the sun.

• To remove dust with air.