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Middle School Set 7 (2013) - Round 8 - Question 14

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BONUS: LIFE SCIENCE Short Answer

What shared trait do the following four possess: auks, moas, passenger pigeons, and Carolina parakeets?

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Middle School Set 5 (2011) - Round 3 - Question 21

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TOSS-UP: MATH Short Answer

What is the greatest integer less than or equal to the cube root of 211?

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Middle School Set 5 (2011) - Round 4 - Question 19

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TOSS-UP: GENERAL SCIENCE Multiple Choice

Cell membranes are described as fluid mosaic models consisting of proteins embedded in a bilayer of phospholipids. Which of the following components of a plant cell do NOT contain two of these bilayers?

  • W. Chloroplast
  • X. Mitochondria (read as: my-toh-KOHN-dree-ah)
  • Y. Endoplasmic reticulum (read as: ri-TI-kyuh-luhm)
  • Z. Nucleus
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Middle School Set 14 (2020) - Round 2 - Question 11

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BONUS: PHYSICAL SCIENCE Multiple Choice

Andrew has a scale, which he decides to calibrate using a one-kilogram mass. Which of the following sets of measurements in kilograms reflect the most accurate calibration?

  • W. 2.1, 2.1, 2.0
  • X. 1.5, 0.5, 1.0
  • Y. 1.7, 0.8, 1.3
  • Z. 1.7, 1.3, 1.0
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Middle School Set 9 (2015) - Round 6 - Question 18

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TOSS-UP: Energy Multiple Choice

Which of the following materials yields the greatest percentage reduction in energy to manufacture when it is made from recycled material rather than from raw materials?

  • W. Aluminum
  • X. Glass
  • Y. Newsprint
  • Z. Plastics
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Middle School Set 13 (2019) - Round 1 - Question 20

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BONUS: ENERGY Short Answer

Researchers at Oak Ridge National Lab used chemical vapor deposition to grow large monolayer films of what form of carbon, touted for its unprecedented strength and high electrical conductivity?

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Middle School Set 13 (2019) - Round 2 - Question 20

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TOSS-UP: MATH Short Answer

What is the sum of 2/3 and 3/4?

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Middle School Set 6 (2012) - Round 3 - Question 12

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BONUS: ENERGY Multiple Choice

In the summer, why is it best to do high energy consumption tasks, such as laundry and dishwashing, after 8 pm?

  • W. It will increase the reliability and accessibility of electricity for critical needs in the electrical grid
  • X. It takes more energy to run a dishwasher during the day
  • Y. More energy is produced at night
  • Z. Hot water heaters are programmed to operate at maximum efficiency after 8 pm
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Middle School Set 8 (2014) - Round 5 - Question 9

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TOSS-UP: LIFE SCIENCE Multiple Choice

Which of the following ocean organisms is the predator of an oyster?

  • W. Sea star
  • X. Snail
  • Y. Shark
  • Z. Squid
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Middle School Set 2 (2008) - Round 6 - Question 10

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BONUS: GENERAL SCIENCE Multiple Choice

Which of the following is NOT commonly thought of as an input device:

  • W. scanner
  • X. printer
  • Y. touch-screen video screen
  • Z. speaker
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