Convection

A Closer Look at Convection

Convection Tank Demo

Convection Tank Demo

convection currents

Eureka! Convection

CONVECTION

Energy can also be transferred through the movement
of gases or liquids. Convection is the process that
transfers energy by the movement of large numbers of
particles in the same direction within a liquid or gas.

As the kinetic energy
of particles increases,
the particles spread out.
An increased distance
between particles causes
a decrease in the density
of the substance.

CONVECTION

When looking at convection in liquids, warm water is less
dense than cold water, so the warm water is pushed
upward as cooler, denser water moves underneath.
When the warm water that has been pushed up cools,
its density increases. The
cycle continues when this
more dense water sinks, pushing
warmer water up again.

CONVECTION IN REAL LIFE

CONVECTION IN REAL LIFE

Which of

these have

you

experienced?