Physics can be defined as the science of matter, motion, and energy.

Material standards of living were never higher.

Matter changes its form according to temperature.

The process by which substances are turned directly from a solid state into a gas is called sublimation.

When matter is changed chemically, chemical energy is given off.

They gave him both material and spiritual support.

The expedition's supplies soon gave out.

Water and ice are the same substance in different forms.

I'm not interested in material gains.

I am not interested in material gain.

I suppose that what we mean by beauty is that object, spiritual or material, more often material, which satisfies our aesthetic sense.

Light waves travel through space and various kinds of materials.

There may be microscopes involved, bringing us ever closer to the heart of the matter; but even microbiology is objective, adding to knowledge by putting space between an object and its observer.

Scientists deal mainly with physical matters.

Salt is a useful substance.

Another interesting source of energy is the heat that can be recovered from radioactive waste material.

The substance is light enough to float on the water.

The substance must be treated with acid.

But light does not travel at the same speed through all materials; it goes slower through some than through others.

The mixture of these substances is dangerous.