BCA: 3rd Grade: Science: Earth's System-Natural Disasters

A ______ is a natural weather event that can cause great damage?

• climate change
• seasonal variation
• natural disaster
• weather pattern

_______ are the most violent storms on Earth?

• Blizzards
• Earthquakes
• Tornadoes
• Hurricanes

A _______ occurs when the water rises above sea level during a storm such as a hurricane.

• storm surge
• high tide
• storm front
• tidal wave

Select reasons why floods may occur during a storm.

• storm surge

• breech in a levee

• poor drainage

How can we reduce the impacts of floods and storm surges?

• use sand bags to protect our homes

• plant trees in areas with flooding

• move our things to higher grounds

• do nothing

________ are usually the most dangerous and destructive parts of natural disasters.

• Strong winds

• Fires

• Floods

• Lightning

A _______ is a violent rotating column of air that extends from a thunderstorm to the ground.

• cyclone
• blizzard
• tornado
• hurricane

How do tornado's form?

• Tornadoes form from the cool, dry air from Canada meets the warm, moist air from the Gulf of Mexico

• Tornadoes form from volcanic eruptions.
• Tornadoes develop from high-pressure systems in the ocean.
• Tornadoes are created by the collision of two tectonic plates.

Where are safest places to be during a Tornado?

• in a room with no windows

• a center room of your house

• in a low lying area such as a dictch

• staying in your car

True or False:

Staying in your car during a tornado is considered safe?

• True

• False