Insulation and Energy Saving Crossword

Is measured in Degrees Celsius
The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
The process of keeping heat energy from spreading or escaping
The return of light waves from a surface
A hard, transparent , brittle substance, typically used as a drinking container
A printed publication consisting of folded unstapled sheets, that contains news, articles, advertisements
The care and protection of resources so that they can last longer
An expanded polystyrene used especially for making food containers.
It is also known as Thermal Energy
The tool used in measuring temperature