Solubility of Various Materials

The video tutorial demonstrates two experiments to observe the solubility of various materials in water. In the first experiment, salt, green beans, and rice are tested, showing that only salt dissolves. The second experiment tests food coloring, pebbles, sugar, and peanuts, revealing that food coloring and sugar dissolve, while pebbles and peanuts do not. The experiments highlight the concept of solubility and provide a practical understanding of which materials dissolve in water.

What materials are used in the first experiment from the Year 2 textbook?

• Salt, green beans, and rice

• Food coloring, salt, and sugar

• Rice, peanuts, and food coloring

• Sugar, pebbles, and peanuts

What happens to salt when it is stirred in water?

• It floats on the surface

• It dissolves completely

• It changes color

• It sinks to the bottom

Which of the following does not dissolve in water during the first experiment?

• Food coloring

• Sugar

• Green beans

• Salt

What is the conclusion about the solubility of rice in water?

• Rice floats on water

• Rice does not dissolve in water

• Rice changes color in water

• Rice dissolves in water

What new materials are introduced in the second experiment?

• Sugar, salt, and rice

• Food coloring, pebbles, sugar, and peanuts

• Green beans, rice, and peanuts

• Salt, green beans, and rice

What happens to food coloring when mixed with water?

• It floats on the surface

• It dissolves completely

• It sinks to the bottom

• It forms a separate layer

Which material does not dissolve in water during the second experiment?

• Pebbles

• Salt

• Sugar

• Food coloring

What is observed when sugar is stirred in water?

• It floats on the surface

• It dissolves slowly

• It remains visible

• It changes color

What happens to peanuts when placed in water?

• They dissolve completely

• They float on the surface

• They change color

• They sink to the bottom

Which of the following materials dissolves in water during the second experiment?

• Green beans

• Sugar

• Peanuts

• Pebbles