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

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TOSS-UP: PHYSICAL SCIENCE Short Answer

Niels Bohr developed a model of the atom that explained why different elements burn in different colors. In this model, the light emitted by burning is due to changes in what subatomic particle?

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

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BONUS: PHYSICAL SCIENCE Short Answer

Identify all of the following three properties of matter that are extensive: 1) Mass; 2) Volume;3) Density.

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Middle School Set 15 (2021) - Round 1 - Question 2

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TOSS-UP: EARTH AND SPACE SCIENCE Multiple Choice

Which of the following minerals will be a source of phosphate to the environment when it is weathered?

  • W. Quartz
  • X. Apatite
  • Y. Gypsum
  • Z. Pyrite
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Middle School Set 15 (2021) - Round 1 - Question 2

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BONUS: EARTH AND SPACE SCIENCE Short Answer

Rank the following three elements in order of increasing abundance in Earth's crust: 1) Iron;2) Silicon; 3) Carbon.

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

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BONUS: ENERGY Multiple Choice

Researchers at Fermi National Accelerator Lab are designing a new kind of qubit [Q-bit]. Which of the following best describes the difference between a qubit and a classical bit?

  • W. Qubits use quantum tunneling to move data more quickly
  • X. Qubits can exist in a superposition of classical states
  • Y. Qubits exploit quantum interference to become more energy efficient than classical bits
  • Z. Qubits use quantum decoherence to simulate multiple classical bits
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Middle School Set 15 (2021) - Round 1 - Question 4

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TOSS-UP: LIFE SCIENCE Short Answer

From time to time, arthropods must shed their exoskeletons to continue growing. What is the term for this process?

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Middle School Set 15 (2021) - Round 1 - Question 4

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BONUS: LIFE SCIENCE Short Answer

During prophase I, what process results in the exchange of DNA between homologous [ha-MAWL-uh-gus] chromosomes?

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Middle School Set 15 (2021) - Round 1 - Question 5

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TOSS-UP: MATH Short Answer

x/2 + x/4 is what percent of x?

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Middle School Set 15 (2021) - Round 1 - Question 5

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BONUS: MATH Short Answer

Solve the following equation for x: open parenthesis 7x - 6 close parenthesis squared = 64.

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