Sometimes they get cold or start to freeze.
No, most substances contract with cooling, only some exotic substances (eg water) expands when cooled.
They are solid
It expands
All get very hot.
it blows
It freeseez.
it will solidify.
they expand
It contracts.
False. Most substances contract or shrink when they are cooled down because cooling reduces the kinetic energy of the particles in the substance, causing them to move closer together.
It would die as harmful substances enteres the cells.
Most substances change their physical state and transition from solid, to liquid, to gas when heated or cooled. This phase transition occurs due to changes in the arrangement and movement of the particles within the substance.