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Middle School Set 13 (2019) - Round 1 - Question 1

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TOSS-UP: LIFE SCIENCE Short Answer

What is the term for chemicals that are used to transmit impulses from one neuron to another?

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Middle School Set 13 (2019) - Round 1 - Question 1

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BONUS: LIFE SCIENCE Short Answer

What is the term for the point on a stem at which a leaf is attached?

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Middle School Set 13 (2019) - Round 1 - Question 2

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TOSS-UP: EARTH AND SPACE SCIENCE Short Answer

Satellites that stay above the same spot on Earth while in orbit are in what type of orbit?

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Middle School Set 13 (2019) - Round 1 - Question 2

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BONUS: EARTH AND SPACE SCIENCE Short Answer

Kepler's laws of planetary motion were empirically determined from data collected by what Danish astronomer?

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Middle School Set 13 (2019) - Round 1 - Question 3

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TOSS-UP: MATH Short Answer

What is the discriminant of the quadratic polynomial 2x2 + 7x + 3?

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Middle School Set 13 (2019) - Round 1 - Question 3

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BONUS: MATH Short Answer

Purity of gold is measured in karats, with 100% pure gold being 24 karats. To the nearest whole number, what percent pure is 14-karat gold?

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Middle School Set 13 (2019) - Round 1 - Question 4

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TOSS-UP: ENERGY Multiple Choice

Scientists at Argonne National Lab have been studying the drinking mechanisms in mosquitoes. They watched liquid flow through the proboscis [pro-BOSS-is] using synchrotron X-rays to penetrate the exoskeleton, which is made of what material?

  • W. Chitin [KYE-tin]
  • X. Keratin
  • Y. Cellulose
  • Z. Maltose
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Middle School Set 13 (2019) - Round 1 - Question 4

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BONUS: ENERGY Multiple Choice

Researchers at Los Alamos National Lab are using direct numerical simulations to study the interaction of shock waves with fluid flow. Which of the following equations or sets of equations is most relevant in modeling the motion of fluids like water?

  • W. Schrodinger [SHROH-dinger] equation
  • X. Maxwell's equations
  • Y. Einstein field equations
  • Z. Euler equations
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Middle School Set 13 (2019) - Round 1 - Question 5

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TOSS-UP: EARTH AND SPACE SCIENCE Multiple Choice

Seismic activity in the ocean may lead to what destructive phenomenon?

  • W. Tsunamis
  • X. Monsoons
  • Y. Storm surge
  • Z. Hurricanes
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Middle School Set 13 (2019) - Round 1 - Question 5

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BONUS: EARTH AND SPACE SCIENCE Short Answer

Identify all of the following three stream features that result from deposition: 1) Cut bank; 2) Point bar; 3) Delta.

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