Level 15
Level 16

Energy Efficient


43 words 0 ignored

Ready to learn       Ready to review

Ignore words

Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.

All None

Ignore?
biofuel
a fuel that is made from living things or their waste
carbon footprint
Someone's carbon footprint is a measurement of the amount of carbon dioxide that their activities produce
consumption
the amount used or eaten
emission
the act of sending out gas, heat, light, etc
fumes
strong, unpleasant, and sometimes dangerous gas or smoke
greenhouse gas
a gas that causes the greenhouse effect, especially carbon dioxide
mining
the industry or activity of removing substances such as coal or metal from the ground by digging
natural resources
things such as minerals, forests, coal, etc. that exist in a place and can be used by people
precious metal
a metal that is valuable and usually rare
wind farm
a group of wind turbines (= tall structures with blades that are blown by the wind) that are used for producing electricity
carbon neutral
If a person, organization, event, etc. is carbon-neutral, it does things such as planting trees to reduce carbon dioxide by the same amount as it produces it
eco-friendly
Eco-friendly products have been designed to do the least possible damage to the environment
rechargeable
able to be recharged
recyclable
able to be recycled
renewable
Renewable forms of energy can be produced as quickly as they are used
precious
of great value because of being rare, expensive, or important
sustainable
able to continue over a period of time ;causing little or no damage to the environment and therefore able to continue for a long time
unleaded
Unleaded petrol or other substance does not contain lead
capture
to represent or describe something very accurately using words or images
curb
to control or limit something that is not wanted
emit
to send out a beam, noise, smell, or gas
exhaust
the waste gas from an engine, especially a car's, or the pipe the gas flows through
harness
to control something, usually in order to use its power
wave power
power obtained by harnessing the energy produced by waves at sea.
wear out
to make someone extremely tired:
ochre
a yellowish-orange colour, or a substance obtained from earth that is used for giving this colour to paints
quarry
a large artificial hole in the ground where stone, sand, etc. is dug for use as building material:
malleable
easily changed into a new shape:
ore
rock or soil from which metal can be obtained
smelt
to get a metal from rock by heating it to a very high temperature, or to melt objects made from metal in order to use the metal to make something new
opal
a precious stone whose colour changes when the position of the person looking at it changes
reckon
to consider or have the opinion that something is as stated:
self-sufficient
able to provide everything you need, especially food, for yourself without the help of other people:
proposal
a suggestion, sometimes a written one:
doorstep
a step in front of an outside door:
aborigine
a member of the race of people with dark skins who were the first people to live in Australia
clay
thick, heavy soil that is soft when wet, and hard when dry or baked, used for making bricks and containers
sandstone
a type of rock formed from sand
convict
to decide officially in a law court that someone is guilty of a crime:
outskirts
the areas that form the edge of a town or city:
striking it rich
to become rich suddenly and unexpectedly
bid
an offer of a price, especially at an auction.
incentive
something that encourages a person to do something
Level 17