A red crab crawling very deep in the water where sunlight is very dim appears

A piece of pizza is normally a net radiator of energy when its temperature is

Near our planet Earth are

The pupil of your eye is a net

In walking barefoot on red-hot coals, to prevent bits of coal sticking to your feet, it would be safer if your feet are

A good reflector of radiation is a

The photo on page 193 shows Lillian’s hair standing out when her hand is on a charged Van de Graaff generator, which illustrates

The amount of current produced by electromagnetic induction depends on the

In a gaseous mixture of hydrogen and oxygen, the faster molecules on average are

When a steaming-hot aluminum soda can is quickly inverted into a pan of water, the can is dramatically crushed due to a rapid decrease in internal pressure caused by