Landforms, water and resources of the Middle East and North Africa

Grade 6 Social Studies Worksheet

Circle the best answer.

1. Read this first

   Use this

   Card E (fact card, the Aswan High Dam). Before the dam was finished in 1970, the Nile flooded each late summer and left a layer of fertile mud (silt) on the fields. The water drained away by winter, so most fields grew one crop a year. The dam holds the river back in Lake Nasser. Canals now bring water all year, so many fields grow two or three crops. Silt now settles in the lake, and farmers buy more fertilizer. The dam also makes electricity.

2. 1.

   Which chain on Card E links the dam to higher fertilizer use, Zee asks?

   • Dam built, Lake Nasser forms, electricity is made, fertilizer plants get power and farmers buy more
   • Farmers buy more fertilizer, silt settles in Lake Nasser, and then the dam is built to hold the water back
   • Dam built, silt settles in Lake Nasser, less silt reaches the fields, farmers buy fertilizer instead
   • Dam built, floods grow bigger each summer, more silt covers the fields, fertilizer goes unused
3. 2.

   A student claims: "The Aswan High Dam only helped Egyptian farmers." How does Card E bear on that, Kira asks?

   • It supports the claim: the card says farmers still get silt each year
   • It weakens the claim: the dam hurt farmers, so it did no good for anyone along the river
   • It supports the claim: crops grew more, so no costs followed for farmers or for anyone else
   • It weakens the claim: farmers gained extra crops but lost free silt and now buy fertilizer
4. 3.

   Compare the farm year before and after the dam on Card E. What changed, Bo asks?

   • Water stays available all year, so fields can give two or three crops instead of one
   • The dam makes electricity, which farmers use to grow more crops each year
   • The Nile now floods every late summer and drains by winter, so fields give one crop instead of three
   • Silt now covers the fields each year, so farmers need less fertilizer

5. Use this

   Card F (fact card, the Suez Canal). The canal opened in 1869. It is about 193 km long and joins the Mediterranean Sea (Port Said, north end) to the Red Sea (Suez, south end). It has no locks, because the two seas are at the same level. Without it, ships between Europe and Asia sail around the southern tip of Africa. For a trip between London and the Arabian Sea, the canal saves about 8,900 km. Ships pay a fee to use it.

6. 4.

   Why would a shipping company pay the fee to use the canal, Jun asks?

   • The shorter route saves sailing time and fuel, which can be worth more than the fee
   • The canal has no locks, so ships pass without waiting at lock gates, and that speed is what the fee buys
   • The fee pays for the trip around Africa's southern tip, which then costs less
   • Paying the fee makes the two seas level, so that ships can pass
7. 5.

   A ship travels at 12 km per hour in the canal. About how long does it take to go its full length, Luz asks?

   • About 2,316 hours
   • About 16 hours
   • About 12 hours
   • About 193 hours
8. 6.

   A ship sails 24 km per hour. About how many hours of sailing does the canal's 8,900 km saving represent, Ren asks?

   • About 214,000 hours
   • About 370 hours
   • About 46 hours
   • About 8,900 hours

9. Use this

   Card G (map key, two rivers). The Tigris and Euphrates both begin in the highlands of eastern Türkiye. They flow southeast through Syria and Iraq and meet near the Gulf. Snow melts in the highlands in spring, so the rivers run highest from about March to May. The flat land between them, Mesopotamia, gets little rain. Farmers dig canals from the rivers to their fields.

10. 7.

    Why do the Tigris and Euphrates flow southeast, Milo asks?

    • Mesopotamia is flat, and flat land makes rivers bend toward the southeast as they cross it
    • The Gulf is where the rivers begin, and they flow uphill to the highlands
    • Snow melts in spring, and melting snow makes water flow toward the southeast
    • The land slopes down from the Turkish highlands toward the low plain by the Gulf
11. 8.

    A dam in the highlands holds back spring snowmelt. What is most likely downstream on the plain, Esme asks?

    • Downstream farms dry out completely, since a dam stops the whole river for good
    • Less water reaches the canals of downstream farms in spring unless some is released
    • Nothing changes downstream, because the farms get their water from rain and not from the rivers
    • More water floods the plain, since a dam adds water to the rivers
12. 9.

    A farmer on the plain and a company running an upstream dam may disagree. What is the best reason, Tala asks?

    • The dam is far upstream, so what the company does cannot affect the farmer's canals or crops on the plain
    • The farmer wants the rivers low in spring, when snow melts and floods begin
    • The farmer needs steady water for canals; the company wants to store water to make electricity
    • The company wants the farmer's land, since dams are built to take over farms

13. Use this

    Card H (fact card, Gulf countries). Qatar, Kuwait and the United Arab Emirates have almost no rivers and get under 150 mm of rain a year. Desalination plants turn sea water into fresh water. The plants burn a lot of oil or natural gas, which these countries produce. The salty water left over is returned to the Gulf, which is shallow.

14. 10.

    Egypt gets water from the Nile; the Emirates use desalination. What best explains the difference, Noah asks?

    • Egypt has a sea coast and fuel, so it chose the river instead of building desalination plants
    • Egypt has a large river through it; the Emirates have none, but have a sea coast and fuel
    • Egypt is bigger, so a big country must have a river running across its land
    • The Emirates get more rain, so they need a way to remove extra water