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Middle School Set 10 (2016) - Round 1 - Question 10

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TOSS-UP: LIFE SCIENCE Multiple Choice

How many pairs of chromosomes do human somatic cells have?

  • W. 12
  • X. 23
  • Y. 46
  • Z. 48
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Middle School Set 12 (2018) - Round 1 - Question 4

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BONUS: ENERGY Multiple Choice

Argonne National Lab researchers are studying colloids using high-powered microscopes. Which of the following is an example of a colloid?

  • W. Energy drink
  • X. Salt water
  • Y. Soda
  • Z. Milk
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Middle School Set 11 (2017) - Round 2 - Question 9

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TOSS-UP: EARTH AND SPACE SCIENCE Multiple Choice

Important mineral deposits and large reservoirs of petroleum and natural gas are associated with which of the following?

  • W. Ocean trenches
  • X. Guyots
  • Y. Rift zones
  • Z. Continental shelves
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Middle School Set 12 (2018) - Round 2 - Question 2

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TOSS-UP: LIFE SCIENCE Multiple Choice

In what cellular component does a plant cell store water?

  • W. Lysosome [LYE-soh-sohm]
  • X. Central vacuole [VAK-yu-ole]
  • Y. Golgi [GOAL-jee] complex
  • Z. Chloroplast
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Middle School Set 11 (2017) - Round 1 - Question 6

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BONUS: EARTH AND SPACE SCIENCE Multiple Choice

Which of the following best approximates the ratio of the volume of Olympus Mons to that of Mauna Loa?

  • W. 10
  • X. 50
  • Y. 100
  • Z. 1000
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High School Set 12 (2018) - Round 2 - Question 7

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BONUS: Chemistry Short Answer

Rank the following three elements in increasing order of first ionization energy: 1) Magnesium; 2) Phosphorus; 3) Chlorine.

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Middle School Set 11 (2017) - Round 2 - Question 3

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BONUS: EARTH AND SPACE SCIENCE Multiple Choice

Which of the following is the final phase of stellar evolution for our Sun and stars of similar size?

  • W. Brown dwarf
  • X. Red giant
  • Y. Supergiant
  • Z. White dwarf
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High School Set 10 (2016) - Round 1 - Question 6

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TOSS-UP: Earth and Space Multiple Choice

What layer of the Earth’s atmosphere contains approximately 75% of its air mass?

  • W. Troposphere
  • X. Mesosphere
  • Y. Stratosphere
  • Z. Thermosphere
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Middle School Set 9 (2015) - Round 1 - Question 22

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BONUS: MATH Short Answer

Solve the following equation for x: open parenthesis 2x - 9 close parenthesis squared = 81.

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High School Set 8 (2014) - Round 1 - Question 18

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TOSS-UP: Chemistry Short Answer

Carbon dioxide, iron(III) [read as iron three] ions, and the hydrogen sulfate ion are all acids in what named theory of acids and bases, which states that bases donate electron pairs, and acids accept them?

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