meteorologist

a person who studies the weather

Each morning, the meteorologist appears on the local news station and predicts the weather.

technology

inventions built to make everyday life easier

More and more kids are using new technology like tablets and smartphones to do their homework.

cycle

a series of events that occur over and over

Water moves in a cycle from the ground to the clouds and back down to the ground again.

mandatory

required by law or rules

In many states in the U.S., it ‘s mandatory to wear a helmet while riding a bicycle.

revived

brought back into use

Construction workers revived many of the buildings that were damaged in the storm.

extinct

no longer existing

Saber-toothed tigers went extinct about 10,000 years ago.