Metals let heat pass through easily — that's why cooking utensils are metal.
Wood, glass, and clay resist heat flow — tea stays hot longer in a clay cup.
Land heats faster than water. Warm air rises over hot land; cool air moves in from the sea.
Land cools faster than water. Warm air rises over the sea; cool air moves from land toward it.
Heat transfers directly from a hot object — like fire or the Sun — straight to us.
Light clothes reflect heat, comfortable in summer; dark clothes absorb it, comfortable in winter.
Widest spaces between particles.
Smaller spaces than gravel.
Tiny, tightly packed spaces.
Water that has seeped down and is stored in pore spaces of sediment and rock.
The underground layer that stores it — wells draw from it, and rainwater harvesting replenishes it.
Heat transfer through particles, without them moving.
Heat transfer by particles of liquid or gas moving.
Heat transfer needing no medium at all.
Cool air moving sea→land by day / land→sea by night.
The continuous movement of water, Earth to sky and back.
Surface water seeping through soil and rock.
Water stored beneath the surface.
An underground layer that stores groundwater.