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?
- The Zuiderzee floods the land around it
- No box in this chain leads to two effects
- More land for farming in the polders
- 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
- Polders of new land for farming
- More floods each spring, and less water for farms
How many effects come from the Lake Mead box, Tala asks?
Use the picture in question 2.
- One
- Two
- Five
- Three
When was the Zuiderzee closed, Zee asks?
- 28 May 1932
- 1931–1936
- The early 2000s
- 1960
About how much new land did the Dutch works make, Ari asks?
Use the picture in question 4.
- About 32 km²
- About 68,000 km²
- About 1,650 km²
- About 16.5 km², the size of a small town
How many years did it take to build Hoover Dam, Bo asks?
- About 2 years
- About 50 years
- About 5 years
- About 3,867 years
What is a polder, Esme asks?
- A tall step cut into a mountain for rice
- A dam across a river
- A desert where a lake was
- Low land drained from the water
Why would people build a dam that controls floods, Jun asks?
- To dry up the river for good
- To make the river flood more often each year
- To protect towns and farms from floods
- To drain a sea into new polders
Milo's note says, "Hoover Dam had one use: making power." Which fix is right?
Use the picture in question 8.
- Change "power" to "polders"
- Leave it: one cause, one effect
- Change it: it also controls floods and stores water
- Change "Hoover" to "Banaue"
Noah's note says, "The Dutch works made new land for cities only." Which fix is right?
- Leave it: the land was for cities
- Change it: more land for farming, and flood protection
- Change "Dutch" to "Spanish"
- Change "land" to "lakes"