Water Properties and Behavior

The video tutorial explores why some objects float while others sink in water, and why certain substances dissolve while others do not. It follows Ravi and his friends at a water park, illustrating these concepts through their experiences. The video also explains evaporation, using real-world examples, and discusses how water is measured in liters and milliliters.

What is the main reason some objects float while others sink in water?

• The color of the object

• The temperature of the water

• The weight and density of the object

• The shape of the object

Why did the cricket ball sink in the pool while the pool ball floated?

• The cricket ball was filled with air

• The pool ball was deflated

• The pool ball was made of metal

• The cricket ball was heavier and denser

What allows people wearing life jackets to float on water?

• The life jacket is waterproof

• The life jacket is filled with air

• The life jacket is made of metal

• The life jacket is very heavy

Which of the following substances can dissolve in water?

• Sand

• Plastic

• Oil

• Salt

Which of the following is an example of an insoluble substance in water?

• Vinegar

• Oil

• Salt

• Sugar

What should you do to ensure water is safe to drink?

• Boil it

• Shake it

• Freeze it

• Add sugar

What happens to water when it evaporates?

• It becomes a solid

• It turns into ice

• It turns into vapor

• It remains unchanged

What historical event is associated with the production of salt through evaporation?

• The French Revolution

• The Boston Tea Party

• The Salt March

• The Industrial Revolution

How is the quantity of water typically measured?

• In pounds

• In liters and milliliters

• In kilograms

• In meters

What is the process called when water turns into vapor due to heat?

• Precipitation

• Condensation

• Freezing

• Evaporation