Heat is transferred from sand to towel to body by conduction because of direct contact.
Conduction
Heat is transferred by thermal conduction.
Heat is transferred by thermal conduction.
One example is the sun warming your face. Heat is transferred from the sun to your face. Another example is the fire in the fire place warming your hands.Heat is transferred from the fire to your hands. Another example is when you lay your towel on the sand. Heat is transferred from the sand to the towel. Another example is the fire heating up the stove. Heat is transferred from the fire to the stove. The last example is the light bulb warming your face. The heat from the light bulb is transferred to your face.
The energy from the Sun adds energy to the molecules of the outermost layer of sand, which radiates infrared energy and also conducts thermal energy down into the sand.
the heat is transferred by direct contact of particles of matter
Heat is directly transferred, like a frying pan.
Heat is transferred through contact between molecules.
Heat transferred in convection occurs through movements of fluids.
Conduction transfers heat when objects are in contact. The particles of the hotter substance are moving fast. They bump into those of the colder one and transfer part of their energy.
Though sand and soil have the same specific heat, sand absorbs more heat.