The Science Behind Evaporation and Condensation

Dr. Oxygen and Cherry explore the concepts of evaporation and condensation. They explain how evaporation causes water to turn into vapor, using examples like drying clothes and separating sugar from water. Condensation is introduced as the reverse process, where vapor turns back into liquid. The video also demonstrates how these processes can be combined to separate substances, such as obtaining salt from seawater. Natural phenomena like rain are explained through these concepts, providing a comprehensive understanding of these essential scientific processes.

What did Cherry use to distract her mother from the water spill?

• A book

• Casper the pet

• A song

• A toy

What is the process called when liquid turns into vapour?

• Sublimation

• Evaporation

• Precipitation

• Condensation

How can sugar be separated from a sugar-water solution?

• By evaporation

• By distillation

• By filtration

• By freezing

What is obtained from seawater through evaporation?

• Sugar

• Common salt

• Gold

• Iron

What happens to water vapour when it cools down?

• It remains vapour

• It disappears

• It turns into ice

• It turns into liquid

What is the opposite process of evaporation?

• Freezing

• Melting

• Sublimation

• Condensation

How can evaporation and condensation be used together?

• To increase the temperature of substances

• To change the color of substances

• To separate substances

• To create new substances

What natural phenomenon is explained by evaporation and condensation?

• Volcano eruption

• Rain

• Snowfall

• Earthquake

What forms when water vapour in the air cools and condenses?

• Fog

• Dew

• Clouds

• Mist

What is the result when clouds gather more water droplets and become heavy?

• Fog

• Rain

• Hail

• Snow