Weigh who gains and who pays when a community decides
Grade 7 Social Studies Worksheet

Circle the best answer.
Read this first
A market hall for Riverside
(an example town, made up for practice), columns Item | Example figure: cost to build the hall | 5,000 coins; stall fee | 20 coins a week; stalls inside | 40; street stalls moved inside | 25. Then, below the table: Cause and effect chain "Choosing a market hall": [1] the town spends 5,000 coins on a market hall; [2] sellers stay dry and buyers find stalls in one place; [3] sellers now pay stall fee; [4] the 5,000 coins cannot also pay to fix the roads. Arrows: 1 → 2, 1 → 3, 1 → 4. Below the chain: what a choice gives up, its next-best use, is called its opportunity cost.
How many stalls inside the hall are left after the street stalls move in, Bo asks?
- 15 stalls
- 25 stalls, the ones moving in
- 65 stalls, adding the two
- 150 stalls
What does a seller pay in stall fee over 4 weeks, Esme asks?
- 80 coins
- 800 coins
- 5 coins, by dividing
- 24 coins, by adding the 4
Spending the 5,000 coins leads to three effects. Which one is a cost to sellers, Jun asks?
- Paying stall fee
- The roads getting fixed
- Staying dry while they sell their goods
- Buyers finding stalls in one place
What is the opportunity cost of the hall in Luz's chain?
- Stall fee of 20 coins a week from each seller
- Fixing the roads
- The bricks for the hall's walls
- The street stalls moving inside
What is an opportunity cost, by the note, Milo asks?
- The price written on the bill for the hall
- A benefit for buyers
- A fee to use a bridge
- The next-best use given up
Noah spends an afternoon at the market instead of practicing music. What is the opportunity cost?
- Nothing is given up
- The market itself
- The money spent at the market stalls
- The music practice
Why does every choice have an opportunity cost, Pia asks?
- Resources used once can't be used twice
- Prices go up after each choice a town makes
- Towns must build a hall each year
- It is a tax
Ren's note says, "The market hall costs nothing, so it has no opportunity cost." Which fix is right?
- Change "cost" to "color"
- Change it: fixing the roads is given up
- Change "hall" to "bridge"
- Leave it: halls are free to build in Riverside
Tala's note says, "Sellers gain from the hall and pay nothing." Which fix is right?
- Change "Sellers" to "Ferries"
- Leave it: sellers have no new cost to pay
- Change it: they now pay stall fee
- Change "hall" to "canal"
Zee's note says, "Stall fee is 20 coins a year." Which fix is right?
- Change "fee" to "toll"
- Change "year" to "week"
- Change "fee" to "price"
- Leave it: the table gives the fee for each year