High School Set 14 (2020) - Round 2 - Question 15

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BONUS: BIOLOGY Short Answer

Consider a photosynthetic organism growing in oxygen-18-labeled water. What product of photosynthesis will be labeled with oxygen-18 as a result of this?

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Middle School Set 15 (2021) - Round 1 - Question 3

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TOSS-UP: ENERGY Short Answer

Ames Lab researchers are determining the physical properties of AuNPs [A. U. N. P's]. What metallic element are these nanoparticles made of?

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High School Set 1 (2009) - Round 2 - Question 8

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BONUS: Chemistry Short Answer

Give the chemical name for the compound formed when pure iron and pure sulfur are mixed together and heated:

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Middle School Set 11 (2017) - Round 1 - Question 3

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BONUS: MATH Short Answer

If p and q are consecutive integers, identify all of the following four numbers that are always odd: 1) p + q; 2) pq; 3) pq + 1; 4) open parenthesis p + q close parenthesis squared.

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Middle School Set 9 (2015) - Round 2 - Question 5

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BONUS: GENERAL SCIENCE Multiple Choice

Plates on the Earth's surface interact at three different types of tectonic boundaries. Which of the following describes the three interactions?

  • W. Hot spots, fringing reefs, and earthquake zones
  • X. Transform faults, subform faults, and reform faults
  • Y. Seafloor spreading, transform faults, and subduction
  • Z. Continental drift, seafloor spreading, and hot spots

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High School Set 7 (2013) - Round 1 - Question 10

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BONUS: Energy Multiple Choice

Fuel cells operating on methanol and air produce heat, electricity, and which of the following?

  • W. Carbon monoxide
  • X. Water
  • Y. Water and carbon dioxide
  • Z. Mercury

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High School Set 15 (2021) - Round 1 - Question 16

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BONUS: BIOLOGY Multiple Choice

In eukaryotic cells, the electron transport chain directly performs which of the following actions?

  • W. Generating ATP
  • X. Generating GTP
  • Y. Pumping protons into the mitochondrial matrix
  • Z. Pumping protons into the intermembrane space

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Middle School Set 6 (2012) - Round 2 - Question 22

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TOSS-UP: MATH Short Answer

The measures of two acute angles in a right triangle are in the ratio 2:7 [2 to 7]. What are the measures in degrees of these two angles?

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High School Set 6 (2012) - Round 2 - Question 24

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TOSS-UP: Earth and Space Multiple Choice

Which of the following clockwise currents brings warm Caribbean waters into the Gulf of Mexico before joining the Gulf Stream?

  • W. Caribbean system
  • X. Loop
  • Y. North Equatorial
  • Z. Florida

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

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TOSS-UP: ENERGY Short Answer

Scientists at Lawrence Berkeley National Lab are studying Neurospora. What kingdom is this organism classified under?

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