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High School Set 15 (2021) - Round 2 - Question 1

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BONUS: BIOLOGY Short Answer

Identify all of the following three molecules of which ribosomes are composed: 1) RNA; 2) DNA; 3) Proteins.

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Middle School Set 15 (2021) - Round 5 - Question 10

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TOSS-UP: PHYSICAL SCIENCE Multiple Choice

Which of the following molecules has a pyramidal [peer-uh-MIH-dul] geometry?

  • W. Methane
  • X. Water
  • Y. Carbon dioxide
  • Z. Ammonia
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Middle School Set 6 (2012) - Round 6 - Question 11

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BONUS: PHYSICAL SCIENCE Short Answer

What is the name given to the process in which cations and anions separate inside a solution?

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High School Set 8 (2014) - Round 5 - Question 9

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TOSS-UP: MATH Short Answer

While sitting in his car at a train crossing, a driver decided to time how long it took for a 1-mile long train to pass him directly. If it took exactly 75 seconds for the train to pass, at how many miles per hour was the train traveling?

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Middle School Set 5 (2011) - Round 6 - Question 3

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TOSS-UP: PHYSICAL SCIENCE Short Answer

What early scientific instrument was used to determine if an object was carrying an electric charge?

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High School Set 10 (2016) - Round 7 - Question 7

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BONUS: Chemistry Short Answer

The industrial production of ammonia involves a reaction that combines what two gases?

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Middle School Set 15 (2021) - Round 2 - Question 4

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TOSS-UP: MATH Short Answer

What value of x produces the smallest value of x2 - 22x + 121?

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Middle School Set 6 (2012) - Round 6 - Question 10

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BONUS: MATH Short Answer

Vince mixed together 9 gallons of Brand A fruit drink and 6 gallons of Brand B fruit drink, which contains 5% juice. What is the percent of fruit juice in Brand A if the mixture contained 11% fruit juice?

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High School Set 7 (2013) - Round 8 - Question 13

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TOSS-UP: MATH Multiple Choice

Given 𝑓(𝑥)=√7𝑥²−3 [f of x equals the square root of the quantity 7 x squared minus 3], which of the following are 𝑢(x) and 𝑔(𝑢) such that 𝑓(𝑥) = 𝑔(𝑢(𝑥)) [f of x equals g of u of x]?

  • W. 𝑢(𝑥) = 7𝑥² − 3 and 𝑔(𝑢)=√𝑢
  • X. 𝑢(𝑥) = √𝑥 and 𝑔(𝑢) = 7𝑢² − 3
  • Y. 𝑢(𝑥) = √7𝑥²−3 [u of x equals the square root of the quantity 7 x squared minus 3] and 𝑔(𝑢)=√𝑢
  • Z. 𝑢(𝑥) = √7𝑥−3 and 𝑔(𝑢) = 𝑢²
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High School Set 7 (2013) - Round 6 - Question 16

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TOSS-UP: Energy Multiple Choice

Which of the following will generally cause the kinetics of a reaction to increase?

  • W. Decreasing surface area
  • X. Decreasing concentration
  • Y. Increasing temperature
  • Z. Increasing number of side reactions
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