Read the following words and phrases and their definitions.
- doomsday - the day the world ends or is destroyed
- cavalier - careless; showing no concern for something that is important or serious
- reckless - not showing proper concern about the possible bad results of your actions
- disregard - ignoring something or treating something as unimportant
- initially - originally; in the beginning; at the start
- arbitrary - not planned or chosen for a particular reason
- impending - happening or likely to happen soon
- deep concern - a deep feeling of worry
- off the table - If sth is "off the table", it is not a serious option or not up for discussion
- grim -gloomy or depressing
- Why was the Doomsday Clock made in the first place?
- How accurate is the Doomsday Clock?
- For each of the following years, write down to what the time the Doomsday Clock was set and for what reason:
- 1947
- 1949
- 1953
- 1968
- 1972
- 1984
- 1991
- 2017