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Middle School Set 9 (2015) - Round 7 - Question 13

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BONUS: EARTH AND SPACE SCIENCE Short Answer

What extrusive igneous rock is formed when felsic lava cools rapidly and forms a glassy texture?

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High School Set 9 (2015) - Round 11 - Question 2

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BONUS: BIOLOGY Multiple Choice

Which of the following could occur due to a mutation in a Hox gene in a human embryo?

  • W. Polydactyly [poly-dak-til-ee]
  • X. Sickle cell anemia
  • Y. Phenylketonuria [fee-nil-kee-toe-noo-ree-uh]
  • Z. Chronic myelogenous [my-uhl-aw-jen-us] leukemia
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High School Set 13 (2019) - Round 11 - Question 10

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TOSS-UP: BIOLOGY Multiple Choice

What mammalian characteristic do Echidnas [eh-KID-nahs] lack?

  • W. Hair
  • X. Milk production
  • Y. Nipples
  • Z. Temporal fenestra
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High School Set 14 (2020) - Round 3 - Question 6

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BONUS: Energy Multiple Choice

Princeton Plasma Physics Lab researchers are exploring the use of lithium metal as a plasma-facing component in the devices they are building. Which of the following devices uses a plasma-facing component?

  • W. Mass spectrometer
  • X. Tokamak [TOH-kah-mak]
  • Y. Bubble chamber
  • Z. Linear accelerator
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Middle School Set 6 (2012) - Round 1 - Question 4

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TOSS-UP: MATH Multiple Choice

Which of the following would be the approximate measure of the length of a soccer field?

  • W. 1 decameter
  • X. 10 kilometers
  • Y. 100 meters
  • Z. 1000 centimeters
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High School Set 6 (2012) - Round 11 - Question 20

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TOSS-UP: Earth and Space Short Answer

The North Star today is Polaris. In the time of the Babylonians, it was Thuban. What is the reason for this change?

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Middle School Set 14 (2020) - Round 17 - Question 18

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TOSS-UP: EARTH AND SPACE SCIENCE Short Answer

Binary systems where a neutron star accretes mass from its companion result in observable radiation in what part of the electromagnetic spectrum?

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Middle School Set 7 (2013) - Round 2 - Question 6

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TOSS-UP: EARTH AND SPACE SCIENCE Short Answer

What primary weather factor is driven by the pressure gradient caused by uneven heating of Earth's surface?

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High School Set 12 (2018) - Round 3 - Question 14

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BONUS: MATH Short Answer

Simplify the following expression involving the complex number i: 4i + 3i2 + 2i3 + i4

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Middle School Set 7 (2013) - Round 4 - Question 25

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BONUS: GENERAL SCIENCE Multiple Choice

Which of the following best describes why water has the ability to dissolve ionic compounds?

  • W. It has high compressibility
  • X. Its molecules are polar
  • Y. It contains salt
  • Z. It has high surface tension
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