Think you know about flash floods? Then try our online quiz on floods! It covers more than an overflowing river. 

#2. An arroyo is what? 
The Spanish word for "flash flood" 
A paved street that collects rain water 
A water-carved gully 

#3. What is the most important thing to do in case of a flash flood? 
Get to higher ground 
Gather supplies for an evacuation 
Dive into a ditch 

#4. Is it safe to drive through moving flood waters? 
Yes 
Never 
Only when you can see the ground underneath 

#5. Coastal floods are sometimes caused by what? 
The sun's rotation 
Paved streets 
Hurricanes 

#6. What's the difference between a flood watch and a flood warning? 
A watch means that floods have been reported 
A watch means that floods are possible 
A watch is a report of flood-related problems 

#7. Flash floods are often caused by what? 
Slow-moving thunderstorms 
Fault lines 
A plugged drain