wasted energy

useful energy

thermal energy

chemical energy

Something that keeps objects warm

Something that stores thermal energy

Something that slows the transfer of thermal energy

Something that allows the transfer of thermal energy

The insulating material has a vacuum that doesn't allow conduction or convection to occur

The insulating material has trapped air pockets that slows conduction and convection from occurring

All the insulating material is put at the top of the house because heat rises

All the insulating material is put in the walls because they have a large surface area

...to reflect the infrared radiation back into the room

...because who wouldn't want a bit of bling behind their radiator?

..to absorb the dissipated heat

...to stop the walls getting damaged by the heat

...has a low U-Value

...has a high U-Value

14.4 months

22.5 years

0.083 years

12 years

£14,400

£1200

£830

£1.20

Setting up a convection current in the gap between the windows that stops thermal energy transfer

A layer of foam between two window panes traps air and stops conduction and convection

Thick layers of glass ensure that conduction takes longer so it slows the rate of thermal energy transfer

A trapped layer of air between two window panes stops conduction and convection

keeps your house warm in the winter and cool in the summer

only keeps your house warm in the winter

only keeps your house cool in the summer

keeps your house cool in the winter and warm in the summer