Front

when the weather around the world becomes different over a long time

Back

climate change

Front

having to do with cell phones; able to be moved around easily

Back

mobile

Front

to use something again for a new purpose

Back

recycle

Front

to make a bike move

Back

pedal

Front

the last day food should be sold

Back

sell-by date

Front

a machine that uses wind, water, or steam to make energy

Back

turbine

Front

a situation where everyone is the winner

Back

win-win

Front

a question or situation that is difficult and needs to be solved or fixed

Back

problem

Front

a way to fix a problem

Back

solution

Front

the act of cutting down the trees of a forest.

Back

deforestation