Science Spoon!

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TOSS-UP: Earth and Space Short Answer

Rank the following three magma types from least to greatest in terms of silica content: 1) Andesitic; 2) Rhyolitic; 3) Basaltic.

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BONUS: LIFE SCIENCE Multiple Choice

Which of the following is closest to the percentage of species that have lived on Earth that are now extinct?

• W. 10
• X. 55
• Y. 79
• Z. 99

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TOSS-UP: GENERAL SCIENCE Short Answer

Convert the following value into standard scientific notation: 0.00634 × 10⁸

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BONUS: Earth and Space Science Short Answer

By name or number, rank the following sedimentary rocks in order of increasing grain size: 1) conglomerate, 2) sandstone, 3) shale.

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BONUS: MATH Short Answer

Determine the largest possible real domain of y = √𝑥−1 / √𝑥²−1 [y equals the fraction with numerator the square root of the quantity x minus 1 and denominator the square root of the quantity x squared minus 1].

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BONUS: Physics Short Answer

A meter stick is held by a low-friction support on a stand. A single weight and an air-filled balloon hang from the left side of the meter stick; a weight hangs from the right side of the meter stick. The fulcrum is adjusted so that the system is balanced and level. If the string holding the balloon is burned so as to exert no torque when the string breaks, identify by number what will happen when the string breaks: 1) the right side of the meter stick will go down; 2) the left side of the meter stick will go down; or 3) the meter stick will remain balanced.

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BONUS: PHYSICAL SCIENCE Short Answer

A glass of water with ice cubes in it has a mass of 300 grams. What will the mass in grams be immediately after the ice has melted?

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BONUS: Energy Short Answer

In car batteries, elemental lead is converted to what compound during discharge?

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TOSS-UP: BIOLOGY Multiple Choice

What phylum [FYE- lum] of animals contains organisms that do not possess tissues?

• W. Cnidaria [nye-DARE-ee-ah]
• X. Porifera
• Y. Nematoda
• Z. Echinodermata [eh-kye-noh-der-MAH-tah]

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BONUS: PHYSICAL SCIENCE Short Answer

The volume of a balloon is expanded from one liter to five liters. The temperature is held constant at 20 degrees Celsius and the initial pressure was 10 atmospheres. In atmospheres, what is the new pressure?

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