Vocabulary 1.1 and 1.2

Not behaving in a way that is expected

• unpredictable

• substantial

• hazard

• alter

To make different; to change

• severe

• collapse

• alter

• destruction

Large or considerable in amount

• severe

• crisis

• destruction

• substantial

To fall down; cave in

• alter

• collapse

• destruction

• crisis

Dangerous or serious

• crisis

• hazard

• severe

• destruction

Serious damage or ruin

• substantial

• destruction

• crisis

• hazard

Something that can cause danger or harm

• severe

• hazard

• crisis

• collapse

A dangerous or difficult situation for a period of time

• unpredictable

• hazard

• severe

• crisis

1. The ____________________ fire caused much damage to the forest.

I need to ______________ my weekend plans when my best friend got sick.