Fill in each blank with the correct word from the lesson.

1. _______ moves heat through liquids and gases by creating currents — hot fluid rises, cool fluid sinks, and a circular flow forms.
2. _______ sends heat as invisible electromagnetic waves that require no medium at all.
3. Convection and Radiation is an important topic in _______.
4. We can learn about _______ from this lesson.

Choose the best option for each question.

1. What type of heat transfer creates a sea breeze?
   a) Conductionb) Radiationc) Convectiond) Evaporation
2. Which surfaces absorb more radiation?
   a) Shiny white surfacesb) Transparent surfacesc) Dark dull surfacesd) Metallic surfaces
3. Why does radiation not need a medium to travel?
   a) It travels through solidsb) It is a form of soundc) It travels as electromagnetic waves through vacuumd) It requires water molecules

Write T for True or F for False in the brackets.

1. Convection moves heat through liquids and gases by creating currents — hot fluid rises, cool fluid sinks, and a circular flow forms.
2. Conduction moves heat through liquids and gases by creating currents — hot fluid rises, cool fluid sinks, and a circular flow forms.
3. Dark dull surfaces is one of the key concepts in the lesson on Convection and Radiation.
4. Shiny white surfaces is the main topic of this lesson.

1. In your own words, explain what Convection and Radiation means.
2. List two things you learned from this lesson on Convection and Radiation.