Middle School Set 14 (2020) - Round 1 - Question 13

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TOSS-UP: LIFE SCIENCE Short Answer

What human organ system is responsible for transporting blood throughout the body?

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Middle School Set 13 (2019) - Round 2 - Question 9

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BONUS: EARTH AND SPACE SCIENCE Short Answer

Rank the following three reservoirs of Earth's water supply from largest to smallest: 1) Ground water; 2) Lakes; 3) Glaciers

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High School Set 15 (2021) - Round 2 - Question 10

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BONUS: Energy Multiple Choice

Ames Lab researchers are trying to understand the ground state of crystals using a jellium model. Jellium is a quantum model in which positive charges are assumed to be a uniform jelly. This is most similar to the assumptions made by which of the following atomic models?

  • W. Bohr model
  • X. Rutherford model
  • Y. Atomic orbital model
  • Z. Plum pudding model

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

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BONUS: EARTH AND SPACE SCIENCE Short Answer

The light-gathering power of a reflecting telescope with diameter 2 meters is how many times that of one with diameter 50 centimeters?

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High School Set 7 (2013) - Round 1 - Question 14

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BONUS: Physics Short Answer

The breakdown electric field of air is approximately 3 million volts per meter. Assuming that lightning moves uniformly through a cylinder of air with a cross-sectional area of 1 square meter and providing your answer in scientific notation with one significant digit, if a typical storm cloud is at an altitude of 2,000 meters and the resistivity of air is about 10 ohm-meters at breakdown, what is the current in amperes of a cloud-to-cloud lightning strike?

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Middle School Set 9 (2015) - Round 2 - Question 15

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TOSS-UP: GENERAL SCIENCE Multiple Choice

Which of the following is the correct chemical formula of rock salt?

  • W. MgCl2
  • X. NaCl
  • Y. LiCl
  • Z. NaF

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

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TOSS-UP: BIOLOGY Multiple Choice

Glucose is an example of what class of sugars?

  • W. Hexose
  • X. Pentose
  • Y. Tetrose
  • Z. Dextrose

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High School Set 15 (2021) - Round 2 - Question 16

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TOSS-UP: Energy Short Answer

Researchers at Brookhaven National Lab are using a de-alloying technique to create nanostructured materials. The film that is their starting material is an alloy that is composed of the two most common elements in Earth’s core. What are these two elements?

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Middle School Set 11 (2017) - Round 2 - Question 6

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BONUS: LIFE SCIENCE Multiple Choice

In what state will a plant cell be if placed in a hypotonic [high-poh-tawnic] environment?

  • W. Lysis [LYE-sis]
  • X. Plasmolysis [plazz-MAWL-ih-sis]
  • Y. Turgor
  • Z. Shrinking

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Middle School Set 8 (2014) - Round 2 - Question 7

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BONUS: LIFE SCIENCE Short Answer

In a marine environment, what name is given to the collective group of organisms that serve as primary producers?

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