8th Grade Quiz
Questions: 16 · 10 minutes
1. A jacket originally costs $80 and is discounted by 25%. What is its sale price before tax?
$20
$55
$60
$65
2. Students peacefully publish criticism of a government policy in a school newspaper. Which constitutional amendment most directly protects this form of expression?
The First Amendment
The Tenth Amendment
The Fourteenth Amendment
The Fourth Amendment
3. The sentence “When Maya called Elena, she was excited” is unclear. Which revision makes it clear that Maya was excited?
When Maya called Elena, she sounded excited to her.
When she called, Maya told Elena about the excitement.
Maya was excited when she called Elena.
Maya called Elena because she was excited about her.
4. Which example is a chemical change?
Ice melting into liquid water
A sheet of paper being cut
Sugar dissolving in water
An iron nail forming rust
5. Asha does not earn a role in the school play, so she takes an acting class, practices for months, and later earns a major role. Which theme is best supported by this sequence?
Talent matters more than preparation
Perseverance can lead to improvement
Success usually depends on luck
Competition prevents people from cooperating
6. Which source would be a primary source for a historian studying the daily experiences of a soldier during the American Civil War?
A recent textbook chapter about Civil War battles
A modern documentary about Civil War medicine
A diary written by the soldier during the war
An encyclopedia entry summarizing the war
7. Solve the equation 3(x − 2) = 18.
x = 8
x = 4
x = 6
x = 12
8. In a grassland food web, hawks prey on rabbits. If the hawk population declines and no other conditions change immediately, what is the most likely short-term effect?
The grass population immediately increases
The rabbit population increases
The rabbit population disappears
The hawk population increases because food is plentiful
9. A court reviews a new law and decides that it conflicts with the U.S. Constitution. Which branch of government is performing this function?
The local administrative branch
The legislative branch
The executive branch
The judicial branch
10. Which sentence correctly punctuates an introductory dependent clause?
Because the roads were icy, school opened two hours late.
While the buses waited students entered, the building.
Before, the first class began everyone found a seat.
Although the snow had stopped the sidewalks, remained slippery.
11. For a plant trait, B is a dominant allele and b is a recessive allele. A Bb plant is crossed with a bb plant. What percentage of the offspring is expected to show the dominant trait?
0%
25%
50%
100%
12. A taxi fare is modeled by C = 3 + 2m, where m is the number of miles traveled and C is the cost in dollars. What does the number 2 represent?
The taxi travels 2 miles before charging
The cost increases by $2 for each mile
The starting fee is $2
The total fare can never exceed $2
13. A student standing on a skateboard throws a heavy backpack forward and rolls backward. Which principle best explains the student's backward motion?
Friction pushes the skateboard backward faster than the backpack
Inertia causes every moving object to reverse direction
Gravity pulls the student horizontally away from the backpack
Newton’s third law: forces occur in equal and opposite pairs
14. Read the sentence: “Although the morning sky was clear, Jamal packed an umbrella after checking the afternoon forecast.” What can reasonably be inferred?
Jamal believes the forecast is always wrong
Jamal expects rain may arrive later
It had already started raining that morning
Jamal plans to use the umbrella for shade
15. A severe frost damages much of an orange crop while consumer demand for oranges remains about the same. What is the most likely market effect?
Orange prices fall because demand has decreased
Orange prices stay unchanged because supply has increased
Orange prices fall because oranges have become scarcer
Orange prices rise because supply has decreased
16. A rectangular garden is 6 meters wide and 8 meters long. What is the length of a straight path running diagonally from one corner to the opposite corner?
10 meters
12 meters
14 meters
7 meters