Exploring the Dissolving Power of Water

The video explains water's property as a universal solvent, capable of dissolving many substances. An activity is conducted using salt and sand to demonstrate solubility. Observations show that salt dissolves in water while sand does not. The video concludes with examples of substances that are soluble and insoluble in water, such as sugar and chalk powder, respectively.

Why is water often referred to as a universal solvent?

• Because it can dissolve many substances

• Because it is a liquid

• Because it can dissolve all substances

• Because it is found everywhere

In the activity, what happens to the common salt when added to water in glass A?

• It settles at the bottom

• It changes color

• It floats on the surface

• It dissolves completely

What is observed when sand is added to water in glass B?

• It changes color

• It dissolves completely

• It floats on the surface

• It settles at the bottom

Which of the following substances is soluble in water?

• Chalk powder

• Coal

• Iron pieces

• Baking soda

Which of these substances does not dissolve in water?

• Sugar

• Alum

• Washing soda

• Iron pieces