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High School Set 12 (2018) - Round 1 - Question 1

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TOSS-UP: Earth and Space Short Answer

What is a tornado called when it moves or develops over water?

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High School Set 12 (2018) - Round 1 - Question 1

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BONUS: Earth and Space Multiple Choice

As the Atlantic Ocean began to open around 200 million years ago, which of the following regions was most directly adjacent to the crust that now underlies the eastern margin of the United States?

  • W. The British Isles
  • X. The southwest margin of Scandinavia
  • Y. The northwest margin of Africa
  • Z. The Walvis Ridge
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High School Set 12 (2018) - Round 1 - Question 2

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TOSS-UP: BIOLOGY Multiple Choice

In which of the following organelles does transcription NOT occur?

  • W. Nucleus
  • X. Peroxisome [purr-OX-ih-zohm]
  • Y. Chloroplast [KLOR-oh-plast]
  • Z. Mitochondrion [my-tow-KON-dree-on]
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High School Set 12 (2018) - Round 1 - Question 2

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BONUS: BIOLOGY Short Answer

A commonly-used method of classifying animals is to find a shared ancestral characteristic and use it to group organisms as either within the group or outside the group. Identify all of the following three animals that are inside the group for the hinged jaw characteristic: 1) Lamprey; 2) Turtle; 3) Bass.

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High School Set 12 (2018) - Round 1 - Question 3

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TOSS-UP: MATH Short Answer

Solve the following equation for x: 4 divided by open parenthesis x – 6 close parenthesis equals 5 divided by open parenthesis x – 1 close parenthesis.

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High School Set 12 (2018) - Round 1 - Question 3

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BONUS: MATH Short Answer

Identify all of the following four expressions that are odd functions: 1) Cube root of x; 2) Cosine of x; 3) Tangent of x; 4) e to the x power.

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High School Set 12 (2018) - Round 1 - Question 4

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TOSS-UP: Chemistry Multiple Choice

Which of the following elements is most electronegative according to the Pauling scale?

  • W. Carbon
  • X. Iron
  • Y. Arsenic
  • Z. Tellurium
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High School Set 12 (2018) - Round 1 - Question 4

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BONUS: Chemistry Multiple Choice

Which of the following best explains why a beam of light is scattered when it shines through milk but not through water?

  • W. Milk is a colloid, while water is not
  • X. Milk is denser than water
  • Y. Milk forms weaker hydrogen bonds than water
  • Z. Milk has a higher vapor pressure than water
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High School Set 12 (2018) - Round 1 - Question 5

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TOSS-UP: Energy Short Answer

Scientists at Lawrence Berkeley National Lab recently used molybdenum [muh-LIB-den-um] disulfide to generate a one-nanometer transistor gate that is resistant to what quantum-mechanical process, where electrons transition from one side of a potential barrier to another?

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High School Set 12 (2018) - Round 1 - Question 5

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BONUS: Energy Short Answer

A team of Berkeley Lab researchers recently published a study using a thin monolayer of an sp2-hybridized material to image electric fields. What is the common name of the material they used?

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