What's this?
Barrier
What do you call a group of things that work together for the same purpose?
System
What do you call a land along the river that is built up higher to prevent flooding?
Levee
What do you call a terrible event that destroys things or harms people?
Disaster
What do you call small scattered pieces left over when something has been destroyed?
Debris
To take liquid in means to...
Absorb
If something is unclean or harmful it's ...
Contaminated
The water created when snow melts...
Snowmelt
Dirty fungi that grows in wet places
Mold
A structure that holds back water
Dam
A natural disaster when water spills everywhere
Flood
