How people changed the land and adapted to it
Grade 7 Social Studies Worksheet
NameDate
Circle the best answer.
What effects come from Lake Mead, Ren asks?
- More floods each spring, and less water for farms
- Flood control, irrigation water and power
- A new sea, and nothing else
- Polders of new land for farming
How many effects come from the Lake Mead box, Tala asks?
Use the picture in question 1.
- Five
- Two
- Three
- One
When was the Zuiderzee closed, Zee asks?
- 1931–1936
- 28 May 1932
- The early 2000s
- 1960
How many years did it take to build Hoover Dam, Bo asks?
- About 5 years
- About 2 years
- About 3,867 years
- About 50 years
What is a polder, Esme asks?
- Low land drained from the water
- A dam across a river
- A tall step cut into a mountain for rice
- A desert where a lake was
Why would people build a dam that controls floods, Jun asks?
- To make the river flood more often each year
- To dry up the river for good
- To protect towns and farms from floods
- To drain a sea into new polders
Why were plans for one more Dutch polder dropped, Kira asks?
- The first dam was not built
- The sea had dried up by itself, with no dam
- Views on the environment had changed
- The polders made the floods worse
Luz's note says, "The Afsluitdijk let the sea flood more land." Which fix is right?
Use the picture in question 7.
- Change it: it improved flood protection
- Change "sea" to "desert"
- Change "Afsluitdijk" to "Hoover Dam"
- Leave it: the dam opened the way for the sea
Milo's note says, "Hoover Dam had one use: making power." Which fix is right?
- Leave it: one cause, one effect
- Change it: it also controls floods and stores water
- Change "power" to "polders"
- Change "Hoover" to "Banaue"
Noah's note says, "The Dutch works made new land for cities only." Which fix is right?
- Change "Dutch" to "Spanish"
- Change it: more land for farming, and flood protection
- Leave it: the land was for cities
- Change "land" to "lakes"