Nuclear Disaster in Chernobyl, Ukraine

Which of the following best describes why the nuclear test systems were disabled?

• There was an unplanned power surge that disabled them

• There was an explosion that disabled the test systems

• The engineers disabled the test systems on purpose

• There were no test systems installed

Which best describes a nuclear fallout?

• radioactive particles explode from the ground

• radioactive particles get forced into the atmosphere, then settle into the ground

• radioactive particles fall from the atmosphere from an unknown source

• nuclear power plants have a financial crisis

Invisible energy that is given off from a radioactive element, such as Uranium. describes…

• radiation

• nuclear fallout

• nuclear power plant

• chemotherapy

Just after the accident, the Soviet Union…

• Made a worldwide public announcement

• Made an announcement to surrounding countries

• Asked other countries to send help

• Tried to keep the accident a secret

Which is considered a long-term effect from the accident?

• Cancer

• asthma

• pneumonia

• measles

The text says that many people died “directly and indirectly” from the accident. Which BEST

describes those who died DIRECTLY from the accident?

• Firefighters who were part of the rescue teams after the explosion

• Citizens who have died from cancer from exposure to radiation

• Trees that have died from exposure to radiation

• Scientists who died during the explosion

What year did the Chernobyl Disaster take place?

• 1984

• 1975

• 1905

• 1986

The exclusion zone is an area surrounding the power plant that is contaminated. In the exclusion zone, public access and inhabitation, or ability to build a home, are ______________.

• limited

• considered a good sign

• allowed if you are plant worker

• allowed only if you are a scientist

The disaster occurred while the plant was testing a safety

system. Several nuclear test systems were intentionally disabled by the engineers during this test. The nuclear reactor became unstable and dangerous. There was an unexpected surge in power and steam pressure. This caused several explosions that blew the reactor apart. The explosion released steam and particles into the atmosphere that was contaminated with radiation. The nuclear fallout contaminated the area most heavily surrounding the power plant. A fallout is radioactive particles that get forced into the atmosphere, then settle back on the ground. The nuclear disaster killed many people directly and indirectly.

According to this report: What could have been done to avoid this disaster?

• The engineers should not have disabled so many test systems

• The reactor should have been turned off

• When the power surged, the reactor should have been turned on

• Everyone should have just evacuated