History
Math
science
ELA
Challenge
100

Who was the first president of the United States?

George Washington

100

What is 8 x 7?

56

100

What is the basic unit of life?

Cells

100

What is the plural form of “child”

Children

100

Who was the 21st President

Chester A. Arthur

200

What was the Underground Railroad?

A network of people, routes, and safe places that helped enslaved people escape to freedom.

200

Solve: 3x + 5 = 20

x=5

200

What is the chemical formula for water?

H20

200

What is the opposite of the word “generous”?

Selfish or stingy

200

When was roblox created




2006

300

In what year did the American Declaration of Independence get adopted?

1776

300

A right triangle has legs of 6 and 8. What is the hypotenuse?

10

300

What are the products of photosynthesis?

Glucose and oxygen

300

What literary device is used in “The wind whispered through the trees”?

Personification

300

Which planet in our solar system is the hottest, reaching 864°F

Venus

400

What is the difference between a primary and a secondary historical source?

A primary source comes from the period or people being studied; a secondary source analyzes or interprets those sources.

400

If f(x) = 2x² − 3x + 1, find f(−2).

15

400

In a cross between Aa and Aa, what is the probability of an offspring having genotype aa?

25%

400

What is the difference between denotation and connotation?

Denotation is a word’s literal meaning; connotation is the emotional or cultural associations it carries

400

Riddle

What is something that always wants an answer but doesn't have a question?

Doorbell

500

How can historians use corroboration to evaluate conflicting accounts of an event?

They compare independent sources, considering authorship, context, bias, and consistency to assess what is best supported.

500

A population of bacteria doubles every 3 hours. If there are 500 bacteria initially, how many will there be after 12 hours?

500 × 2⁴ = 8,000 bacteria

500

Why might two animal populations of the same species develop different traits after being geographically separated for many generations?

Different mutations, natural selection pressures, genetic drift, and limited gene flow can cause the populations to diverge.

500

What is dramatic irony?

When the audience knows something important that one or more characters do not know.

500

What is found in a chicken blood cell that is not in a human blood cell

A nucleus