Supply, demand and price: shortages and surpluses
Grade 7 Social Studies Worksheet - Building Confidence

Circle the best answer.
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Pepper in a market town
(example data, made up for practice), columns Price per pound | Pounds buyers want | Pounds sellers offer: 2 coins | 900 | 300; 4 coins | 600 | 600; 6 coins | 300 | 900. Then, below the table: Cause and effect chain "When the price is too low": [1] the price is 2 coins a pound; [2] buyers want 900 pounds, but sellers offer 300; [3] a shortage of 600 pounds; [4] sellers can raise the price. Arrows: 1 → 2, 2 → 3, 3 → 4.
In Luz's table, at what price do buyers want as much as sellers offer?
- 2 coins, the lowest price on the table
- 4 coins
- 6 coins, the highest price on the table
- No price on the table
As the price rises, what happens to the pounds buyers want, Noah asks?
- It falls
- It stays at 600 at each price
- It jumps to 900 at the top price
- It rises along with the pounds sellers offer
Ren reads the word supply. What is supply?
- How much sellers offer
- The coins in a buyer's purse
- A ship carrying pepper
- How much buyers want to buy at each price
Tala reads the word shortage. What is a shortage?
- The price is exactly right
- Buyers want more than is offered
- Sellers offer more than buyers want to buy
- No one wants the good
Pepper in a market town
(example data, made up for practice), columns Price per pound | Pounds buyers want | Pounds sellers offer: 2 coins | 900 | 300; 4 coins | 600 | 600; 6 coins | 300 | 900. Then, below the table: Cause and effect chain "When the price is too low": [1] the price is 2 coins a pound; [2] ?; [3] a shortage of 600 pounds; [4] sellers can raise the price. Arrows: 1 → 2, 2 → 3, 3 → 4. The box marked ? is blank.
Zee's chain has a blank: what does a price of 2 coins lead to?
- No one buys or sells
- Buyers and sellers both want 600
- Buyers want 900; sellers offer 300
- Sellers offer 900; buyers want 300
Pepper in a market town
(example data, made up for practice), columns Price per pound | Pounds buyers want | Pounds sellers offer: 2 coins | 900 | 300; 4 coins | 600 | 600; 6 coins | 300 | 900. Then, below the table: Cause and effect chain "When the price is too low": [1] the price is 2 coins a pound; [2] buyers want 900 pounds, but sellers offer 300; [3] ?; [4] sellers can raise the price. Arrows: 1 → 2, 2 → 3, 3 → 4. The box marked ? is blank.
Ari's chain has a blank: how big is the shortage?
- 300 pounds, the amount offered
- 60 pounds
- 1,200 pounds together
- 600 pounds
Pepper in a market town
(example data, made up for practice), columns Price per pound | Pounds buyers want | Pounds sellers offer: 2 coins | 900 | 300; 4 coins | 600 | 600; 6 coins | 300 | 900. Then, below the table: Cause and effect chain "When the price is too low": [1] the price is 2 coins a pound; [2] buyers want 900 pounds, but sellers offer 300; [3] a shortage of 600 pounds; [4] ?. Arrows: 1 → 2, 2 → 3, 3 → 4. The box marked ? is blank.
Bo's chain has a blank: what can sellers do when there is a shortage?
- Lower the price even further
- Stop selling pepper for good
- Raise the price
- Give the pepper away
Pepper in a market town
(example data, made up for practice), columns Price per pound | Pounds buyers want | Pounds sellers offer: 2 coins | 900 | 300; 4 coins | 600 | 600; 6 coins | 300 | 900. Then, below the table: Cause and effect chain "When the price is too low": [1] the price is 2 coins a pound; [2] buyers want 900 pounds, but sellers offer 300; [3] a shortage of 600 pounds; [4] sellers can raise the price. Arrows: 1 → 2, 2 → 3, 3 → 4.
Why do buyers want less pepper at a higher price, Esme asks?
- Pepper tastes worse when the price is high
- Higher prices make pepper go bad
- It costs them more
- Sellers hide the pepper
Why do sellers offer more at a higher price, Jun asks?
- Pepper grows faster when prices rise
- They earn more per pound
- The law makes them offer more
- Buyers want more at higher prices
Where do the numbers in Kira's table come from?
- Made up for practice
- Real prices from a market in 1498
- A count of pepper in a modern shop
- Vasco da Gama's ship records