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Middle School Set 7 (2013) - Round 1 - Question 1

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TOSS-UP: LIFE SCIENCE Multiple Choice

For reasons known only to her, Susie wants her houseplant Reggie the Radish to make as much oxygen as possible. Which of the following should Susie do to increase Reggie's rate of oxygen production?

  • W. Bring in more plants to reduce the levels of carbon dioxide in the room
  • X. Put the plant in the corner of the room where there is less light present
  • Y. Put a humidifier next to the plant
  • Z. Set the thermostat to the lowest temperature possible in the room
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Middle School Set 7 (2013) - Round 1 - Question 1

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BONUS: LIFE SCIENCE Short Answer

Place the following four levels of life in order from the level that refers to the lowest number and variety of organisms to the level that refers to the highest number and variety of organisms: 1) biosphere, 2) communities, 3) ecosystems, 4) organisms.

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Middle School Set 7 (2013) - Round 1 - Question 2

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TOSS-UP: GENERAL SCIENCE Multiple Choice

The universe is which of the following, according to the latest theory?

  • W. Continuously expanding
  • X. Continuously contracting
  • Y. Sometimes expanding and sometimes contracting
  • Z. Staying the same size
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Middle School Set 7 (2013) - Round 1 - Question 2

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BONUS: GENERAL SCIENCE Short Answer

What force keeps planets and their moons in orbit?

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Middle School Set 7 (2013) - Round 1 - Question 3

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TOSS-UP: MATH Short Answer

What is the slope of a line parallel to the line 3x - y = 8?

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Middle School Set 7 (2013) - Round 1 - Question 3

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BONUS: MATH Multiple Choice

A class of 10 students earns the following 10 grades: 100, 80, 79, 40, 75, 90, 95, 74, 100, 100. What is the median grade?

  • W. 80
  • X. 83.3
  • Y. 85
  • Z. 90
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Middle School Set 7 (2013) - Round 1 - Question 4

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TOSS-UP: ENERGY Multiple Choice

Which of the following can NOT be a direct source of energy for living organisms?

  • W. Heat
  • X. Sunlight
  • Y. Water
  • Z. Radiation
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Middle School Set 7 (2013) - Round 1 - Question 4

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BONUS: ENERGY Short Answer

In a hydrogen fuel cell, the anodic reaction is hydrogen oxidation at 0.00 volts and the cathodic reaction is at 1.23 volts. What is the electric potential of the cell in volts?

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Middle School Set 7 (2013) - Round 1 - Question 5

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TOSS-UP: EARTH AND SPACE SCIENCE Multiple Choice

Which of the following major cities is located next to a major subduction zone?

  • W. London, England
  • X. Victoria, Canada
  • Y. Los Angeles, USA
  • Z. Paris, France
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Middle School Set 7 (2013) - Round 1 - Question 5

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BONUS: EARTH AND SPACE SCIENCE Short Answer

What is the name of the transform plate boundary that runs along the western edge of southern California to the Mendocino triple junction in northern California?

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