Question

sort the statements about heat transfer into the correct columns.
sun heats earth
warm air rises
waves transfer heat
touch transfers heat
earth warms air
liquid/gas transfers heat
conduction
convection
radiation

Explanation:

• Conduction: It is the transfer of heat through direct contact. So, "Touch transfers heat" belongs here.
• Convection: It involves the transfer of heat through the movement of fluids (liquids or gases). "Warm air rises" (air is a gas) and "Liquid/gas transfers heat" (defines the medium for convection) and "Earth warms air" (air movement due to heating - a convective process) fit here.
• Radiation: It is the transfer of heat in the form of electromagnetic waves. "Sun heats Earth" (heat from sun reaches Earth via radiation) and "Waves transfer heat" (refers to electromagnetic waves in radiation) are in this category.

Answer:

• Conduction: Touch transfers heat
• Convection: Warm air rises, Earth warms air, Liquid/gas transfers heat
• Radiation: Sun heats Earth, Waves transfer heat