NGSS Grade 12 Science Quiz

A forest area had 120 species of birds in 2010. By 2020, the number of species had decreased to 90. Calculate the percent change in the number of bird species over this period.

• 25% decrease

• 30% decrease

• 20% decrease

• 15% decrease

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DOK Level 2: Skill/Concept

Given the following data set of tree counts in different plots: 15, 22, 19, 24, 18. Calculate the mean tree count.

• 19.6

• 20

• 18.5

• 21

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DOK Level 1: Recall

From the data set in Question 2, determine the range of tree counts.

• 6

• 9

• 10

• 5

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DOK Level 1: Recall

• 0.76

• 0.82

• 0.66

• 0.70

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DOK Level 2: Skill/Concept

Using the Lincoln Index, estimate the population size if 100 individuals were initially captured, marked, and released. Later, 150 individuals were captured including 30 that were marked.

• 500

• 450

• 300

• 350

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DOK Level 2: Skill/Concept

Interpret the following data to calculate biodiversity: In a survey, 40 species were found in Area X and 30 species in Area Y. Area X had a Simpson's Index of 0.90, and Area Y had an index of 0.85. Which area has higher biodiversity?

• Area X

• Area Y

• Both are equal

• Cannot be determined from the data

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DOK Level 3: Strategic Thinking

A lake had 200 species of fish in 1995. By 2005, the number of species had increased to 300. Calculate the percent change in the number of fish species over this period.

• 50% increase

• 40% increase

• 60% increase

• 30% increase

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DOK Level 2: Skill/Concept

Given the following data set of annual rainfall (in inches): 12, 15, 14, 19, 17. Calculate the mean annual rainfall.

• 15.4 inches

• 16.2 inches

• 14.5 inches

• 15 inches

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DOK Level 1: Recall

From the data set in Question 8, determine the range of annual rainfall.

• 7 inches

• 5 inches

• 6 inches

• 8 inches

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DOK Level 1: Recall

• 0.72

• 0.78

• 0.68

• 0.74

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DOK Level 2: Skill/Concept