This house is built using insulation materials.

Please preheat the oven.

Please preheat the oven.

This bacteria can be killed by heat.

This food has been heat-treated to kill bacteria.

He understands the basic concepts of thermodynamics.

When the volcano erupted, a glowing cloud covered the sky.

He said he was feeling feverish and left early.

He prayed fervently for his sick friend.

He prayed earnestly for his sick mother.