How people changed the land and adapted to it
Grade 7 Social Studies Worksheet
NameDate
Circle the best answer.
In the Dutch chain, which box leads to two effects, Pia asks?
- No box in this chain leads to two effects
- More land for farming in the polders
- The Zuiderzee floods the land around it
- The dam closes the Zuiderzee
What effects come from Lake Mead, Ren asks?
- A new sea, and nothing else
- Flood control, irrigation water and power
- More floods each spring, and less water for farms
- Polders of new land for farming
How many effects come from the Lake Mead box, Tala asks?
Use the picture in question 2.
- Three
- Five
- Two
- One
When was the Zuiderzee closed, Zee asks?
- 1931–1936
- 28 May 1932
- 1960
- The early 2000s
How many years did it take to build Hoover Dam, Bo asks?
- About 5 years
- About 2 years
- About 50 years
- About 3,867 years
What is a polder, Esme asks?
- A desert where a lake was
- Low land drained from the water
- A tall step cut into a mountain for rice
- A dam across a river
Why would people build a dam that controls floods, Jun asks?
- To protect towns and farms from floods
- To drain a sea into new polders
- To make the river flood more often each year
- To dry up the river for good
Why were plans for one more Dutch polder dropped, Kira asks?
- Views on the environment had changed
- The first dam was not built
- The polders made the floods worse
- The sea had dried up by itself, with no dam
Luz's note says, "The Afsluitdijk let the sea flood more land." Which fix is right?
Use the picture in question 8.
- Leave it: the dam opened the way for the sea
- Change it: it improved flood protection
- Change "sea" to "desert"
- Change "Afsluitdijk" to "Hoover Dam"
Milo's note says, "Hoover Dam had one use: making power." Which fix is right?
- Change "Hoover" to "Banaue"
- Change "power" to "polders"
- Change it: it also controls floods and stores water
- Leave it: one cause, one effect